GET https://kbin.spritesserver.nl/m/askelectronics@discuss.tchncs.de/t/1846/Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed

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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
      They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
      **So my questions are:**\n
      \n
      1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
      """
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    +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
      They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
      **So my questions are:**\n
      \n
      1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
      """
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      Hi,\n
      \n
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      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
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      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
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      \n
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      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
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      \n
      They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
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      \n
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      \n
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      \n
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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
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      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
      **So my questions are:**\n
      \n
      1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
      """
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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
      They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
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      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
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      """
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      Hi,\n
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      \n
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      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
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      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
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      \n
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      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
      """
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      Hi,\n
      \n
      I’m looking for some help in a field that is super technical and I don’t fully understand.\n
      \n
      I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
      \n
      The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
      \n
      What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
      \n
      They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
      \n
      You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
      \n
      **So my questions are:**\n
      \n
      1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
      \n
      2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
      \n
      3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
      \n
      Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
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    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
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    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
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    +notifyOnNewPostReply: true
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    +isBanned: false
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
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    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
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    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
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      date: 2023-08-08 09:46:07.0 +02:00
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  "showAvatar" => false
]
Attributes 
[]
Component 
App\Twig\Components\UserInlineComponent {#4547
  +user: App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
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    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
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    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
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    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
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    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
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    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
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    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
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    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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    +apInboxUrl: "https://discuss.tchncs.de/inbox"
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    +apDeletedAt: null
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    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
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date App\Twig\Components\DateComponent 12.0 MiB 0.14 ms
Input props 
[
  "date" => DateTimeImmutable @1692179658 {#4110
    date: 2023-08-16 11:54:18.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#4602
  +date: DateTimeImmutable @1692179658 {#4110
    date: 2023-08-16 11:54:18.0 +02:00
  }
}
date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.16 ms
Input props 
[
  "createdAt" => DateTimeImmutable @1692179658 {#4110
    date: 2023-08-16 11:54:18.0 +02:00
  }
  "editedAt" => DateTimeImmutable @1692236805 {#4047
    date: 2023-08-17 03:46:45.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateEditedComponent {#4656
  +createdAt: DateTimeImmutable @1692179658 {#4110
    date: 2023-08-16 11:54:18.0 +02:00
  }
  +editedAt: DateTimeImmutable @1692236805 {#4047
    date: 2023-08-17 03:46:45.0 +02:00
  }
}
user_avatar App\Twig\Components\UserAvatarComponent 12.0 MiB 13.84 ms
Input props 
[
  "user" => App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
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    +showSubscribedMagazines: true
    +showSubscribedDomains: true
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    +notifyOnNewEntryCommentReply: true
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    +addMentionsEntries: false
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    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
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    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
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    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
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    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
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    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
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    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
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    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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      date: 2023-08-08 09:46:07.0 +02:00
    }
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  "width" => 40
  "height" => 40
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#4712
  +width: 40
  +height: 40
  +user: App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
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    +roles: []
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    +markedForDeletionAt: null
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    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
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    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
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    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
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vote App\Twig\Components\VoteComponent 12.0 MiB 0.41 ms
Input props 
[
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      +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
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      +entries: Doctrine\ORM\PersistentCollection {#4042 …}
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      -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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      +apDeletedAt: null
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      +visibility: "visible             "
      +createdAt: DateTimeImmutable @1691480767 {#4103
        date: 2023-08-08 09:46:07.0 +02:00
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    }
    +entry: App\Entity\Entry {#2400
      +user: Proxies\__CG__\App\Entity\User {#1961
        +avatar: null
        +cover: null
        +email: "KyuubiNoKitsune@lemmy.blahaj.zone"
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        }
        +markedForDeletionAt: null
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        +customCss: null
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        +moderatorTokens: Doctrine\ORM\PersistentCollection {#1713 …}
        +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#1706 …}
        +moderatorRequests: Doctrine\ORM\PersistentCollection {#1657 …}
        +entries: Doctrine\ORM\PersistentCollection {#1745 …}
        +entryVotes: Doctrine\ORM\PersistentCollection {#1738 …}
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
      2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
      3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
      """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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      +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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        antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
        \n
        you can probably use off the shelf antennas used for drones if these are small enough for your application\n
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        soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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date App\Twig\Components\DateComponent 12.0 MiB 0.23 ms
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          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
          \n
          3: No commercial stuff, buying, selling or valuations.\n
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
      \n
      Ill also take a look at the drone antennas too.\n
      \n
      Thanks again for your help.
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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date App\Twig\Components\DateComponent 12.0 MiB 0.13 ms
Input props 
[
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]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#5937
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date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.09 ms
Input props 
[
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Attributes 
[]
Component 
App\Twig\Components\DateEditedComponent {#5991
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Input props 
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Attributes 
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Component 
App\Twig\Components\UserAvatarComponent {#6045
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vote App\Twig\Components\VoteComponent 12.0 MiB 0.46 ms
Input props 
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        +__isInitialized__: true
         …2
      }
      +magazine: App\Entity\Magazine {#262
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          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
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      +image: null
      +domain: Proxies\__CG__\App\Entity\Domain {#1894 …}
      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
          2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
          3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
          """
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        Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
        \n
        Ill also take a look at the drone antennas too.\n
        \n
        Thanks again for your help.
        """
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    +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: """
            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          -bodyTs: "'1':1 '2':22 '2cm':167 '3':89 '3cm':154 '40':185 '50':87,96,129 'almost':184 'also':123 'antenna':18,21,128,137,153,162,165,182 'assum':90 'bad':119 'better':175 'case':102 'ceram':136 'circuit':43,141 'coax':109 'critic':56 'dia':168 'distribut':36 'done':80 'effici':176 'element':37 'etc':50 'even':157 'everi':51 'everyth':83 'f':152,161 'fact':190 'find':8 'fine':5 'fraction':52 'frequenc':31 'get':63 'halo':164 'heat':178 'howev':26 'imped':62 'invert':151,160 'inverted-f':150 'kick':116 'know':60 'length':107 'less':177 'like':149 'line':49 'long':111,155 'loss':113 'make':126,194 'match':42,85,94,140,172 'mean':121 'microwav':30 'might':33,70 'mm':54 'non':75 'non-real':74 'ohm':88,97,130 'one':179 'open':45 'option':148 'output':67,92 'part':40 'patch':44 'power':187 'print':17 'provid':139 're':134 'real':76 'rememb':27 'requir':171 'router':11 'see':35,132 'seem':25 'short':47 'smaller':158 'start':34 'thing':65 'time':14 'tradeoff':173 'transmiss':48 'use':105,135 'usual':15,79,100 'wast':183 'well':73 'wire':20 'would':170 'zigzag':159"
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            date: 2023-08-17 03:46:45.0 +02:00
          }
          +createdAt: DateTimeImmutable @1692179658 {#4110
            date: 2023-08-16 11:54:18.0 +02:00
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        }
        +root: App\Entity\EntryComment {#4101}
        +body: """
          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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          "@skillissuer@discuss.tchncs.de"
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        +editedAt: null
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        }
      }
      +root: App\Entity\EntryComment {#4101}
      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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        "@skillissuer@discuss.tchncs.de"
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      +children: Doctrine\ORM\PersistentCollection {#4403 …}
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        date: 2023-08-17 02:40:50.0 +02:00
      }
    }
    +root: App\Entity\EntryComment {#4101}
    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
    +lang: "en"
    +isAdult: false
    +favouriteCount: 0
    +score: 0
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    +ip: null
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    +mentions: [
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      "@skillissuer@discuss.tchncs.de"
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    +children: Doctrine\ORM\PersistentCollection {#4440 …}
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  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
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}
user_inline App\Twig\Components\UserInlineComponent 12.0 MiB 0.13 ms
Input props 
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     …2
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  "showAvatar" => false
]
Attributes 
[]
Component 
App\Twig\Components\UserInlineComponent {#6512
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     …2
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date App\Twig\Components\DateComponent 12.0 MiB 0.15 ms
Input props 
[
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    date: 2023-08-17 02:48:48.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#6567
  +date: DateTimeImmutable @1692233328 {#4438
    date: 2023-08-17 02:48:48.0 +02:00
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}
date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.09 ms
Input props 
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  "editedAt" => null
]
Attributes 
[]
Component 
App\Twig\Components\DateEditedComponent {#6621
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    date: 2023-08-17 02:48:48.0 +02:00
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}
user_avatar App\Twig\Components\UserAvatarComponent 12.0 MiB 0.13 ms
Input props 
[
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     …2
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  "width" => 40
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  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#6675
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Input props 
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
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        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: """
            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: """
            1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
            2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
            3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
            """
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          Thank you for your detailed reply, I really appreciate it. It answers my question and raises a whole bunch more :D, I think I need to brush up on general RF and get a better understanding of how it actually works. I shall do some youtubing and reading on it. I found a really good pdf that discussed antenna design but a lot of it I didn’t understand, so I’m going to need to learn a bit more.\n
          \n
          Ill also take a look at the drone antennas too.\n
          \n
          Thanks again for your help.
          """
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      +body: "if you want to measure anything rf, you’ll need a vector network analyzer like nanoVNA (some $40), this will be very useful in tuning/matching antennas (and making sure you won’t get reflections that could potentially damage transmitter if you screw up badly enough)"
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    +body: "This all seems really complicated but at the same time super interesting. Thanks for the recommendation."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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    -bodyTs: "'/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)':70 '2.4':19 '50':64 'antenna':1,29 'applic':40 'band':21 'bandwidth':15 'center':49 'coax':42 'design':2 'drone':32 'effici':14 'enough':37 'entir':18 'fix':16 'gain/radiation':12 'ghz':20 'imped':63 'insul':50 'limit':5 'line':57 'll':52,61 'melt':48 'microstrip':56 'need':53 'ohm':65 'one':7 'pattern':13 'probabl':24 'shelf':28 'size':11,55 'small':36 'solder':41 'thing':10 'tricki':45 'use':25,30 'usual':4 'well':67 'www.pasternack.com':69 'www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)':68"
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    +commentCount: 0
    +upVotes: 0
    +downVotes: 0
    +visibility: "visible             "
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    +editedAt: DateTimeImmutable @1692181254 {#4363
      date: 2023-08-16 12:20:54.0 +02:00
    }
    +createdAt: DateTimeImmutable @1692179919 {#4364
      date: 2023-08-16 11:58:39.0 +02:00
    }
  }
  +showMagazineName: false
  +showEntryTitle: false
  +showNested: true
  +level: 2
  +canSeeTrash: false
  +dateAsUrl: false
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
  -authorizationChecker: Symfony\Component\Security\Core\Authorization\AuthorizationChecker {#931 …}
}
user_inline App\Twig\Components\UserInlineComponent 12.0 MiB 0.15 ms
Input props 
[
  "user" => App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#4025 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#4023 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
    +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
    +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
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    +apDeletedAt: null
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    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
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  "showAvatar" => false
]
Attributes 
[]
Component 
App\Twig\Components\UserInlineComponent {#7174
  +user: App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
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    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
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    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
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    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
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    +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
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    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
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    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
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    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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    +privateKey: null
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      date: 2024-10-06 22:13:37.0 +02:00
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    +apDeletedAt: null
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    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
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date App\Twig\Components\DateComponent 12.0 MiB 0.14 ms
Input props 
[
  "date" => DateTimeImmutable @1692179919 {#4364
    date: 2023-08-16 11:58:39.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#7229
  +date: DateTimeImmutable @1692179919 {#4364
    date: 2023-08-16 11:58:39.0 +02:00
  }
}
date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.15 ms
Input props 
[
  "createdAt" => DateTimeImmutable @1692179919 {#4364
    date: 2023-08-16 11:58:39.0 +02:00
  }
  "editedAt" => DateTimeImmutable @1692181254 {#4363
    date: 2023-08-16 12:20:54.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateEditedComponent {#7283
  +createdAt: DateTimeImmutable @1692179919 {#4364
    date: 2023-08-16 11:58:39.0 +02:00
  }
  +editedAt: DateTimeImmutable @1692181254 {#4363
    date: 2023-08-16 12:20:54.0 +02:00
  }
}
user_avatar App\Twig\Components\UserAvatarComponent 12.0 MiB 0.24 ms
Input props 
[
  "user" => App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
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    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
    +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
    +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#4153 …}
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    -password: "$2y$13$wQAP4Gif3ESopfZf00xAU.zwr9iTTX.ev3twB9omsse0v00sxuD/G"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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    +apPublicUrl: "https://discuss.tchncs.de/u/skillissuer"
    +apFollowersUrl: null
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    +privateKey: null
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    +apFetchedAt: DateTime @1728245617 {#4104
      date: 2024-10-06 22:13:37.0 +02:00
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    +apDeletedAt: null
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    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
    }
  }
  "width" => 40
  "height" => 40
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#7337
  +width: 40
  +height: 40
  +user: App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
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    +notifyOnNewPostReply: true
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    +addMentionsEntries: false
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#4025 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#4023 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
    +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
    +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#4153 …}
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    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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      date: 2024-10-06 22:13:37.0 +02:00
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    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
    }
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  +asLink: true
}
vote App\Twig\Components\VoteComponent 12.0 MiB 0.46 ms
Input props 
[
  "subject" => App\Entity\EntryComment {#4365
    +user: App\Entity\User {#4049
      +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
      +cover: null
      +email: "skillissuer@discuss.tchncs.de"
      +username: "@skillissuer@discuss.tchncs.de"
      +roles: []
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      +lastActive: DateTime @1721044672 {#4106
        date: 2024-07-15 13:57:52.0 +02:00
      }
      +markedForDeletionAt: null
      +fields: null
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      +notifyOnNewEntryReply: true
      +notifyOnNewEntryCommentReply: true
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      +notifyOnNewPostCommentReply: true
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      +isBot: false
      +spamProtection: true
      +customCss: null
      +ignoreMagazinesCustomCss: false
      +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
      +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
      +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
      +entries: Doctrine\ORM\PersistentCollection {#4042 …}
      +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
      +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
      +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
      +posts: Doctrine\ORM\PersistentCollection {#4032 …}
      +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
      +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
      +postCommentVotes: Doctrine\ORM\PersistentCollection {#4025 …}
      +subscriptions: Doctrine\ORM\PersistentCollection {#4023 …}
      +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
      +follows: Doctrine\ORM\PersistentCollection {#4162 …}
      +followers: Doctrine\ORM\PersistentCollection {#4151 …}
      +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
      +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
      +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
      +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
      +reports: Doctrine\ORM\PersistentCollection {#4128 …}
      +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
      +violations: Doctrine\ORM\PersistentCollection {#4158 …}
      +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
      +awards: Doctrine\ORM\PersistentCollection {#4154 …}
      +subscribedCategories: Doctrine\ORM\PersistentCollection {#4153 …}
      +categories: Doctrine\ORM\PersistentCollection {#4146 …}
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      -totpSecret: null
      -totpBackupCodes: []
      -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
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      +privateKey: null
      +publicKey: null
      +apFetchedAt: DateTime @1728245617 {#4104
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          \n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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          \n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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          \n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        1. no, this is fine, you can find it in routers all the time (usually with printed antennas, or wire antennas)\n
        2. so it seems, however remember that at microwave frequencies you might start seeing distributed elements as a part of matching circuit (patches, open or shorted transmission lines etc) every fraction of mm is critical. i don’t know what impedance gets this thing on output, but it might be very well non-real. it’s usually done so that everything is matched to 50 ohms\n
        3. assuming that output is matched to 50 ohm, which is usually the case, you can use any length of coax, as long as losses don’t kick in too badly. this means you also have to make your antenna 50 ohms. i see you’re using ceramic antenna, which provides matching circuit for you, but there are other options like inverted-F antenna (3cm long) or even smaller zigzagged *inverted F antenna or halo antennas (some 2cm dia), which would require matching. tradeoff is better efficiency (less heating; one of these antennas wastes almost 40% of power) and the fact that you can make them on your own
        """
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      antenna design is usually limited by one of these things: size, gain/radiation pattern, efficiency, bandwidth (fixed here, entire 2.4ghz band)\n
      \n
      you can probably use off the shelf antennas used for drones if these are small enough for your application\n
      \n
      soldering coax can be tricky, don’t melt center insulation. you’ll need to size microstrip line so that it’ll have impedance 50 ohms as well [www.pasternack.com/t-calculator-microstrip.aspx](https://www.pasternack.com/t-calculator-microstrip.aspx)
      """
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          **For questions about component-level electronic circuits, tools and equipment.**\n
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          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      I have no concrete answer to your post…\n
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      I have no concrete answer to your post…\n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      I have no concrete answer to your post…\n
      \n
      However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
      """
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      +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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      +body: """
        i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
        \n
        starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
        \n
        more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
        \n
        and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
        \n
        there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
        \n
        the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
        \n
        at the end of the day the most important material in any antenna are tradeoffs
        """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
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        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#8550
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     …2
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}
vote App\Twig\Components\VoteComponent 12.0 MiB 0.42 ms
Input props 
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          Rules\n
          -----\n
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          \n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
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        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        **So my questions are:**\n
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        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
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        \n
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        \n
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        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: "I… Don’t actually know, I’ve just cobbled together information over the years. My dad worked in an electronics workshop but never taught me anything. There’s a good intro to electronics course on udemy and if you’re serious about it, try get the book The Art of Electronics, its like an electronics bible."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +entry: App\Entity\Entry {#2400}
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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          3: No commercial stuff, buying, selling or valuations.\n
          \n
          4: Be safe.\n
          \n
          ---
          """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: """
        I have no concrete answer to your post…\n
        \n
        However I would be interested to know where I can earn more abt the topic of electronics, I am very interested in learning it and it would be nice to get some guidance. ty in advance
        """
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    +body: """
      i don’t know what are you looking for so i’m just gonna drop some resources that i’ve used:\n
      \n
      starter: [www.antenna-theory.com/antennas/main.php](https://www.antenna-theory.com/antennas/main.php)\n
      \n
      more comprehensive: [www.microwaves101.com/encyclopedias](https://www.microwaves101.com/encyclopedias)\n
      \n
      and on top of that, various amateur radio pages, some are indexed in dxzone.com\n
      \n
      there seem to be two hard limits on antennas in general. one is for approx lossless antennas that are large compared to wavelength: gain, beamwidth and size are related through diffractive limit [en.wikipedia.org/wiki/Diffraction-limited_system](https://en.wikipedia.org/wiki/Diffraction-limited_system) it’s really about capture area, which is intuitive for things like parabolic reflectors, but for things like yagi antennas there’s some defined capture area that ultimately depends on their length\n
      \n
      the other one is on non-directional antennas that are small compared to wavelength. basically one good antenna that you can make is halfwave dipole, you can try various trickery to make it smaller, but this comes at a cost of either smaller bandwidth or increased losses, or both to lesser degree. it might make sense to make an antenna with 70% efficiency which is 3x smaller for example. it all depends on precise requirements\n
      \n
      at the end of the day the most important material in any antenna are tradeoffs
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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Input props 
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Attributes 
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Component 
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vote App\Twig\Components\VoteComponent 12.0 MiB 0.35 ms
Input props 
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        +__isInitialized__: true
         …2
      }
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          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
          \n
          3: No commercial stuff, buying, selling or valuations.\n
          \n
          4: Be safe.\n
          \n
          ---
          """
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      +image: null
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
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        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        **So my questions are:**\n
        \n
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        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        **So my questions are:**\n
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        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        +body: """
          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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        +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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        Hi,\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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[]
Component 
App\Twig\Components\UserAvatarComponent {#10519
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vote App\Twig\Components\VoteComponent 12.0 MiB 0.41 ms
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          Rules\n
          -----\n
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          \n
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
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        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
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        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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      +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
      \n
      The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
      \n
      Hence my desire to use an SMD antenna on a small board instead.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      +body: """
        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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      +body: """
        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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    +homepage: "front"
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    +lastActive: DateTime @1698208938 {#4218
      date: 2023-10-25 06:42:18.0 +02:00
    }
    +markedForDeletionAt: null
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    +showSubscribedMagazines: true
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    +featuredMagazines: null
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    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4235 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4237 …}
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    +entries: Doctrine\ORM\PersistentCollection {#4241 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4243 …}
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    +blockers: Doctrine\ORM\PersistentCollection {#4267 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4269 …}
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    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4287 …}
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    +apDiscoverable: true
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    +privateKey: null
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    +createdAt: DateTimeImmutable @1687148636 {#4220
      date: 2023-06-19 06:23:56.0 +02:00
    }
  }
  +showAvatar: false
}
date App\Twig\Components\DateComponent 12.0 MiB 0.12 ms
Input props 
[
  "date" => DateTimeImmutable @1692188096 {#4393
    date: 2023-08-16 14:14:56.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#11048
  +date: DateTimeImmutable @1692188096 {#4393
    date: 2023-08-16 14:14:56.0 +02:00
  }
}
date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.08 ms
Input props 
[
  "createdAt" => DateTimeImmutable @1692188096 {#4393
    date: 2023-08-16 14:14:56.0 +02:00
  }
  "editedAt" => null
]
Attributes 
[]
Component 
App\Twig\Components\DateEditedComponent {#11102
  +createdAt: DateTimeImmutable @1692188096 {#4393
    date: 2023-08-16 14:14:56.0 +02:00
  }
  +editedAt: null
}
user_avatar App\Twig\Components\UserAvatarComponent 12.0 MiB 0.12 ms
Input props 
[
  "user" => App\Entity\User {#4234
    +avatar: null
    +cover: null
    +email: "elmicha@feddit.de"
    +username: "@elmicha@feddit.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: null
    +lastActive: DateTime @1698208938 {#4218
      date: 2023-10-25 06:42:18.0 +02:00
    }
    +markedForDeletionAt: null
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    +customCss: null
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    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4235 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4237 …}
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    +entries: Doctrine\ORM\PersistentCollection {#4241 …}
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    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4287 …}
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      date: 2023-06-19 06:23:56.0 +02:00
    }
  }
  "width" => 40
  "height" => 40
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#11156
  +width: 40
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    +avatar: null
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      date: 2023-10-25 06:42:18.0 +02:00
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    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4235 …}
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      date: 2023-06-19 06:23:56.0 +02:00
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}
vote App\Twig\Components\VoteComponent 12.0 MiB 0.52 ms
Input props 
[
  "subject" => App\Entity\EntryComment {#4389
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      +username: "@elmicha@feddit.de"
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      +visibility: "visible             "
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        date: 2023-06-19 06:23:56.0 +02:00
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    }
    +entry: App\Entity\Entry {#2400
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        +avatar: null
        +cover: null
        +email: "KyuubiNoKitsune@lemmy.blahaj.zone"
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        +moderatorTokens: Doctrine\ORM\PersistentCollection {#1713 …}
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        +entries: Doctrine\ORM\PersistentCollection {#1745 …}
        +entryVotes: Doctrine\ORM\PersistentCollection {#1738 …}
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          date: 2023-07-27 01:10:08.0 +02:00
        }
        +__isInitialized__: true
         …2
      }
      +magazine: App\Entity\Magazine {#262
        +icon: Proxies\__CG__\App\Entity\Image {#242 …}
        +name: "askelectronics@discuss.tchncs.de"
        +title: "askelectronics"
        +description: """
          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
          \n
          3: No commercial stuff, buying, selling or valuations.\n
          \n
          4: Be safe.\n
          \n
          ---
          """
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        +markedForDeletionAt: null
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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    +magazine: App\Entity\Magazine {#262}
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    +parent: App\Entity\EntryComment {#4305
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        -id: 26022
        -bodyTs: "'/zmt7/bzow77hu)':5 'although':13 'antenna':12 'banggood.onelink.me':4 'banggood.onelink.me/zmt7/bzow77hu)':3 'come':24 'esp':34 'esp32':9 'except':47 'gateway':50 'know':17 'mayb':51 'normal':31 'nrf':37 'nrf52840':20 'place':44 'play':26 'question':23 'use':32"
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      +body: """
        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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        +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
        \n
        The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
        \n
        Hence my desire to use an SMD antenna on a small board instead.
        """
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    +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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        Hi,\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
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      I don’t mind creating the daughter board, I think it could be fun.
      """
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date App\Twig\Components\DateComponent 12.0 MiB 0.14 ms
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          **For questions about component-level electronic circuits, tools and equipment.**\n
          \n
          Rules\n
          -----\n
          \n
          1: Be nice.\n
          \n
          2: Be on-topic (eg: *Electronic*, not *electrical*).\n
          \n
          3: No commercial stuff, buying, selling or valuations.\n
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
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          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
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      I don’t mind creating the daughter board, I think it could be fun.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        +body: """
          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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        +body: """
          The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
          \n
          The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
          \n
          Hence my desire to use an SMD antenna on a small board instead.
          """
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      +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      I do not. I’m planning on it though.\n
      \n
      Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
      \n
      I don’t mind creating the daughter board, I think it could be fun.
      """
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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          -id: 26023
          -bodyTs: "'almost':38 'alreadi':14 'antenna':18,23,29,58 'benefit':44 'board':62 'confus':11 'desir':53 'henc':51 'inclus':6 'instead':63 'modul':35,50 'negat':42 'nrf':2,13 'size':26,32,41 'small':49,61 'smd':17,57 'sorri':8 'tbh':7 'thing':20 'twice':39 'use':55 'useless':5 'vs':30"
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            date: 2023-08-16 09:14:46.0 +02:00
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        +root: App\Entity\EntryComment {#4221}
        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        -bodyTs: "'alreadi':6,22 'antenna':28 'board':5,13 'built':30 'built-in':29 'ceram':27 'charger':19 'could':8 'esp32':16 'get':11 'lipo':18 'mani':21 'print':25"
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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}
user_inline App\Twig\Components\UserInlineComponent 12.0 MiB 0.12 ms
Input props 
[
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Attributes 
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Component 
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date App\Twig\Components\DateComponent 12.0 MiB 0.11 ms
Input props 
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    date: 2023-08-17 07:54:53.0 +02:00
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]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#12314
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}
date_edited App\Twig\Components\DateEditedComponent 12.0 MiB 0.10 ms
Input props 
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Attributes 
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Component 
App\Twig\Components\DateEditedComponent {#12368
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user_avatar App\Twig\Components\UserAvatarComponent 12.0 MiB 0.19 ms
Input props 
[
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]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#12422
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vote App\Twig\Components\VoteComponent 12.0 MiB 0.50 ms
Input props 
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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          **For questions about component-level electronic circuits, tools and equipment.**\n
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          Rules\n
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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            +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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          +body: """
            The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
            \n
            The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
            \n
            Hence my desire to use an SMD antenna on a small board instead.
            """
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        +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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      +body: """
        I do not. I’m planning on it though.\n
        \n
        Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
        \n
        I don’t mind creating the daughter board, I think it could be fun.
        """
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    +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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          +image: null
          +parent: App\Entity\EntryComment {#4305
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              +image: null
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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                "@KyuubiNoKitsune@lemmy.blahaj.zone"
              ]
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              -bodyTs: "'/zmt7/bzow77hu)':5 'although':13 'antenna':12 'banggood.onelink.me':4 'banggood.onelink.me/zmt7/bzow77hu)':3 'come':24 'esp':34 'esp32':9 'except':47 'gateway':50 'know':17 'mayb':51 'normal':31 'nrf':37 'nrf52840':20 'place':44 'play':26 'question':23 'use':32"
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                date: 2023-08-16 09:09:07.0 +02:00
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            +root: App\Entity\EntryComment {#4221}
            +body: """
              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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              "@elmicha@feddit.de"
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            -bodyTs: "'almost':38 'alreadi':14 'antenna':18,23,29,58 'benefit':44 'board':62 'confus':11 'desir':53 'henc':51 'inclus':6 'instead':63 'modul':35,50 'negat':42 'nrf':2,13 'size':26,32,41 'small':49,61 'smd':17,57 'sorri':8 'tbh':7 'thing':20 'twice':39 'use':55 'useless':5 'vs':30"
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              date: 2023-08-16 09:14:46.0 +02:00
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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            "@elmicha@feddit.de"
          ]
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        +body: """
          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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          date: 2023-08-17 02:16:06.0 +02:00
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      +root: App\Entity\EntryComment {#4221}
      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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      ]
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    +root: App\Entity\EntryComment {#4221}
    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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}
user_inline App\Twig\Components\UserInlineComponent 14.0 MiB 0.16 ms
Input props 
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date App\Twig\Components\DateComponent 14.0 MiB 0.14 ms
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App\Twig\Components\DateComponent {#12949
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date_edited App\Twig\Components\DateEditedComponent 14.0 MiB 2.38 ms
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
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        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
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        \n
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        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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            +body: """
              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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      +slug: "Some-advice-on-creating-a-2-4-GHz-antenna-for-Seeed"
      +title: "Some advice on creating a 2.4 GHz antenna for Seeed ESP32-C3"
      +url: "https://lemmy.blahaj.zone/pictrs/image/d0e1f5f0-4175-4566-9a20-da6bf4f73987.webp"
      +body: """
        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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            +body: """
              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
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        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
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        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
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        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        +body: """
          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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        Hi,\n
        \n
        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
        \n
        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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      +body: """
        Hi,\n
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        I’m looking for some help in a field that is super technical and I don’t fully understand.\n
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        I’m planning on using a bunch of these seeed studio Esp modules for some home automation projects, especially because they have a lipo battery charger making it great for portable stuff.\n
        \n
        The thing is the the ESP32s have U.FL SMD antenna connectors. Most of the antennas that you can buy with U.FL connections while are reasonably small, come with 50-150mm leads, which sort of makes the small size of the module a little less valid.\n
        \n
        What I’d like to do is get a female U.FL SMD connector and make a small daugherboard with an 2.4GHz SMD antenna on it, for instance a [Janson 2450AT42B100](https://www.johansontechnology.com/datasheets/2450AT42B100/2450AT42B100.pdf) or a [Molex 479480001](https://tools.molex.com/pdm_docs/as/AS-47948-001-001.pdf).\n
        \n
        They go over the circuit board requirements quite thoroughly so I don’t think designing it will be too difficult, but what I don’t know is, they say that you need impedance matching on the circuit, and I see that there appears to be something that looks like it on the ESP circuit diagram, but I’m not actually sure if it is or not:\n
        \n
        You can see it in the middle near the bottom of the diagram here: [Seeeduino-XIAO-ESP32C3-SCH](https://files.seeedstudio.com/wiki/XIAO_WiFi/Resources/Seeeduino-XIAO-ESP32C3-SCH.pdf)\n
        \n
        **So my questions are:**\n
        \n
        1: Is this a dumb idea, having a direct plug-on SMD antenna?\n
        \n
        2: Is that an impedance matchning circuit between LNA_IN on the ESP chip and U.FL-R-SMT-1?\n
        \n
        3: If I can’t get a female U.FL SMD connector, would using one with a lead and shortening it to make the daughterboard able to be much closer to the connector affect anything? Do I need to ensure that the lead length matches the wavelength at all?\n
        \n
        Edit: Found [this](https://www.digikey.ie/en/products/detail/hirose-electric-co-ltd/U-FL-PR-SMT2-5-1-10/2201792) SMD female U.FL, so they do exist.
        """
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              +body: "Is [this](https://banggood.onelink.me/zMT7/bzow77hu) not the same ESP32 with an antenna? Although I don’t know how the nRF52840 from your question comes into play here. Don’t you normally use an ESP or an NRF, and not both at the same place (with the exception of a gateway maybe)?"
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              -bodyTs: "'/zmt7/bzow77hu)':5 'although':13 'antenna':12 'banggood.onelink.me':4 'banggood.onelink.me/zmt7/bzow77hu)':3 'come':24 'esp':34 'esp32':9 'except':47 'gateway':50 'know':17 'mayb':51 'normal':31 'nrf':37 'nrf52840':20 'place':44 'play':26 'question':23 'use':32"
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            +body: """
              The nRF was a useless inclusion tbh, sorry for the confusion. The nRF already has an smd antenna.\n
              \n
              The thing with those antennas is the size of the antenna vs the size of the module, it’s almost twice the size, negating any benefit of having such a small module.\n
              \n
              Hence my desire to use an SMD antenna on a small board instead.
              """
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          +body: "So you have these boards already? Or could you just get other boards with an ESP32 and LiPo charger? Because many already have a printed or ceramic antenna built-in."
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        +body: """
          I do not. I’m planning on it though.\n
          \n
          Do you know of others with charge controllers with that from factor? The only one close to it I’ve found is the is the m5stack m5stamp, but it doesn’t have a charge controller.\n
          \n
          I don’t mind creating the daughter board, I think it could be fun.
          """
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      +body: "Maybe the [LOLIN C3 Pico](https://www.cnx-software.com/2022/10/28/lolin-c3-pico-esp32-c3-board-battery-charging-support/?amp=1)?"
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    +body: "Ooh, nice! Thank you, that looks great and only a tiny bit bigger, it also has a JST which is great."
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Input props 
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Attributes 
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Component 
App\Twig\Components\SettingsRowEnumComponent {#13598
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Input props 
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13662
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settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.13 ms
Input props 
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Attributes 
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13727
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13783
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Input props 
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13842
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Input props 
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13898
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#13954
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Input props 
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Component 
App\Twig\Components\UserSettingsRowSwitchComponent {#14012
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settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.20 ms
Input props 
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Component 
App\Twig\Components\SettingsRowSwitchComponent {#14075
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user_settings_row_switch App\Twig\Components\UserSettingsRowSwitchComponent 14.0 MiB 0.19 ms
Input props 
[
  "label" => "Show subscribed users"
  "settingsKey" => "KBIN_SUB_CHANNEL_USERS"
]
Attributes 
[]
Component 
App\Twig\Components\UserSettingsRowSwitchComponent {#14133
  +label: "Show subscribed users"
  +help: ""
  +settingsKey: "KBIN_SUB_CHANNEL_USERS"
  +defaultValue: false
  +reloadRequired: true
}
user_settings_row_switch App\Twig\Components\UserSettingsRowSwitchComponent 14.0 MiB 0.21 ms
Input props 
[
  "label" => "Show subscribed magazines"
  "settingsKey" => "KBIN_SUB_CHANNEL_MAGAZINES"
]
Attributes 
[]
Component 
App\Twig\Components\UserSettingsRowSwitchComponent {#14189
  +label: "Show subscribed magazines"
  +help: ""
  +settingsKey: "KBIN_SUB_CHANNEL_MAGAZINES"
  +defaultValue: false
  +reloadRequired: true
}
user_settings_row_switch App\Twig\Components\UserSettingsRowSwitchComponent 14.0 MiB 0.20 ms
Input props 
[
  "label" => "Show subscribed domains"
  "settingsKey" => "KBIN_SUB_CHANNEL_DOMAINS"
]
Attributes 
[]
Component 
App\Twig\Components\UserSettingsRowSwitchComponent {#14245
  +label: "Show subscribed domains"
  +help: ""
  +settingsKey: "KBIN_SUB_CHANNEL_DOMAINS"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 2.19 ms
Input props 
[
  "label" => "Auto media preview"
  "help" => "Automatically expand media previews."
  "settingsKey" => "KBIN_ENTRIES_SHOW_PREVIEW"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#14301
  +label: "Auto media preview"
  +help: "Automatically expand media previews."
  +settingsKey: "KBIN_ENTRIES_SHOW_PREVIEW"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.12 ms
Input props 
[
  "label" => "Compact view"
  "settingsKey" => "KBIN_ENTRIES_COMPACT"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#14357
  +label: "Compact view"
  +help: ""
  +settingsKey: "KBIN_ENTRIES_COMPACT"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 4.68 ms
Input props 
[
  "label" => "Show users’ avatars"
  "settingsKey" => "KBIN_ENTRIES_SHOW_USERS_AVATARS"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#14413
  +label: "Show users’ avatars"
  +help: ""
  +settingsKey: "KBIN_ENTRIES_SHOW_USERS_AVATARS"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.13 ms
Input props 
[
  "label" => "Show magazines’ icons"
  "settingsKey" => "KBIN_ENTRIES_SHOW_MAGAZINES_ICONS"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#9275
  +label: "Show magazines’ icons"
  +help: ""
  +settingsKey: "KBIN_ENTRIES_SHOW_MAGAZINES_ICONS"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.13 ms
Input props 
[
  "label" => "Show thumbnails"
  "settingsKey" => "KBIN_ENTRIES_SHOW_THUMBNAILS"
  "defaultValue" => true
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#11849
  +label: "Show thumbnails"
  +help: ""
  +settingsKey: "KBIN_ENTRIES_SHOW_THUMBNAILS"
  +defaultValue: true
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.18 ms
Input props 
[
  "label" => "Auto media preview"
  "help" => "Automatically expand media previews."
  "settingsKey" => "KBIN_POSTS_SHOW_PREVIEW"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#7940
  +label: "Auto media preview"
  +help: "Automatically expand media previews."
  +settingsKey: "KBIN_POSTS_SHOW_PREVIEW"
  +defaultValue: false
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.12 ms
Input props 
[
  "label" => "Show users’ avatars"
  "settingsKey" => "KBIN_POSTS_SHOW_USERS_AVATARS"
  "defaultValue" => true
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#7927
  +label: "Show users’ avatars"
  +help: ""
  +settingsKey: "KBIN_POSTS_SHOW_USERS_AVATARS"
  +defaultValue: true
  +reloadRequired: true
}
settings_row_enum App\Twig\Components\SettingsRowEnumComponent 14.0 MiB 0.17 ms
Input props 
[
  "label" => "Comment reply position"
  "help" => "Display the comment reply form either at the top or bottom of the page. When 'infinite scroll' is enabled the position will always appear at the top."
  "settingsKey" => "KBIN_COMMENTS_REPLY_POSITION"
  "values" => [
    [
      "name" => "top"
      "value" => "TOP"
    ]
    [
      "name" => "bottom"
      "value" => "BOTTOM"
    ]
  ]
  "defaultValue" => "TOP"
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowEnumComponent {#10553
  +label: "Comment reply position"
  +help: "Display the comment reply form either at the top or bottom of the page. When 'infinite scroll' is enabled the position will always appear at the top."
  +settingsKey: "KBIN_COMMENTS_REPLY_POSITION"
  +values: [
    [
      "name" => "top"
      "value" => "TOP"
    ]
    [
      "name" => "bottom"
      "value" => "BOTTOM"
    ]
  ]
  +defaultValue: "TOP"
  +reloadRequired: true
}
settings_row_switch App\Twig\Components\SettingsRowSwitchComponent 14.0 MiB 0.12 ms
Input props 
[
  "label" => "Show Comment Avatars"
  "help" => "Display/hide user avatars when viewing comments on a single thread or post."
  "settingsKey" => "KBIN_COMMENTS_SHOW_USER_AVATAR"
  "defaultValue" => true
]
Attributes 
[]
Component 
App\Twig\Components\SettingsRowSwitchComponent {#13161
  +label: "Show Comment Avatars"
  +help: "Display/hide user avatars when viewing comments on a single thread or post."
  +settingsKey: "KBIN_COMMENTS_SHOW_USER_AVATAR"
  +defaultValue: true
  +reloadRequired: true
}
user_actions App\Twig\Components\UserActionsComponent 14.0 MiB 0.45 ms
Input props 
[
  "user" => Proxies\__CG__\App\Entity\User {#1961
    +avatar: null
    +cover: null
    +email: "KyuubiNoKitsune@lemmy.blahaj.zone"
    +username: "@KyuubiNoKitsune@lemmy.blahaj.zone"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: null
    +lastActive: DateTime @1729118786 {#1632
      date: 2024-10-17 00:46:26.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#1713 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#1706 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#1657 …}
    +entries: Doctrine\ORM\PersistentCollection {#1745 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#1738 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#1746 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#1497 …}
    +posts: Doctrine\ORM\PersistentCollection {#1474 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#1475 …}
    +postComments: Doctrine\ORM\PersistentCollection {#1774 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#1636 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#1763 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#1447 …}
    +follows: Doctrine\ORM\PersistentCollection {#1442 …}
    +followers: Doctrine\ORM\PersistentCollection {#1422 …}
    +blocks: Doctrine\ORM\PersistentCollection {#1448 …}
    +blockers: Doctrine\ORM\PersistentCollection {#1461 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#1435 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#1440 …}
    +reports: Doctrine\ORM\PersistentCollection {#1457 …}
    +favourites: Doctrine\ORM\PersistentCollection {#1700 …}
    +violations: Doctrine\ORM\PersistentCollection {#1709 …}
    +notifications: Doctrine\ORM\PersistentCollection {#1610 …}
    +awards: Doctrine\ORM\PersistentCollection {#1693 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#1639 …}
    +categories: Doctrine\ORM\PersistentCollection {#1677 …}
    -id: 35093
    -password: "$2y$13$AGZxwaTsNXKfSnHz22inFevGMCk0So4ido6lz8fMclxhQxftdo5HS"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1652 …}
    +apId: "KyuubiNoKitsune@lemmy.blahaj.zone"
    +apProfileId: "https://lemmy.blahaj.zone/u/KyuubiNoKitsune"
    +apPublicUrl: "https://lemmy.blahaj.zone/u/KyuubiNoKitsune"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.blahaj.zone/inbox"
    +apDomain: "lemmy.blahaj.zone"
    +apPreferredUsername: "KyuubiNoKitsune"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1724355346 {#1519
      date: 2024-08-22 21:35:46.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1690413008 {#1517
      date: 2023-07-27 01:10:08.0 +02:00
    }
    +__isInitialized__: true
     …2
  }
]
Attributes 
[]
Component 
App\Twig\Components\UserActionsComponent {#14473
  +user: Proxies\__CG__\App\Entity\User {#1961
    +avatar: null
    +cover: null
    +email: "KyuubiNoKitsune@lemmy.blahaj.zone"
    +username: "@KyuubiNoKitsune@lemmy.blahaj.zone"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: null
    +lastActive: DateTime @1729118786 {#1632
      date: 2024-10-17 00:46:26.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#1713 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#1706 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#1657 …}
    +entries: Doctrine\ORM\PersistentCollection {#1745 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#1738 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#1746 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#1497 …}
    +posts: Doctrine\ORM\PersistentCollection {#1474 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#1475 …}
    +postComments: Doctrine\ORM\PersistentCollection {#1774 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#1636 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#1763 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#1447 …}
    +follows: Doctrine\ORM\PersistentCollection {#1442 …}
    +followers: Doctrine\ORM\PersistentCollection {#1422 …}
    +blocks: Doctrine\ORM\PersistentCollection {#1448 …}
    +blockers: Doctrine\ORM\PersistentCollection {#1461 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#1435 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#1440 …}
    +reports: Doctrine\ORM\PersistentCollection {#1457 …}
    +favourites: Doctrine\ORM\PersistentCollection {#1700 …}
    +violations: Doctrine\ORM\PersistentCollection {#1709 …}
    +notifications: Doctrine\ORM\PersistentCollection {#1610 …}
    +awards: Doctrine\ORM\PersistentCollection {#1693 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#1639 …}
    +categories: Doctrine\ORM\PersistentCollection {#1677 …}
    -id: 35093
    -password: "$2y$13$AGZxwaTsNXKfSnHz22inFevGMCk0So4ido6lz8fMclxhQxftdo5HS"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1652 …}
    +apId: "KyuubiNoKitsune@lemmy.blahaj.zone"
    +apProfileId: "https://lemmy.blahaj.zone/u/KyuubiNoKitsune"
    +apPublicUrl: "https://lemmy.blahaj.zone/u/KyuubiNoKitsune"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.blahaj.zone/inbox"
    +apDomain: "lemmy.blahaj.zone"
    +apPreferredUsername: "KyuubiNoKitsune"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1724355346 {#1519
      date: 2024-08-22 21:35:46.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1690413008 {#1517
      date: 2023-07-27 01:10:08.0 +02:00
    }
    +__isInitialized__: true
     …2
  }
}
date App\Twig\Components\DateComponent 14.0 MiB 0.13 ms
Input props 
[
  "date" => DateTimeImmutable @1692164301 {#1570
    date: 2023-08-16 07:38:21.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#14534
  +date: DateTimeImmutable @1692164301 {#1570
    date: 2023-08-16 07:38:21.0 +02:00
  }
}
magazine_box App\Twig\Components\MagazineBoxComponent 14.0 MiB 9.13 ms
Input props 
[
  "magazine" => App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
  "showSectionTitle" => true
]
Attributes 
[]
Component 
App\Twig\Components\MagazineBoxComponent {#14590
  +magazine: App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
  +showCover: true
  +showDescription: true
  +showRules: true
  +showSubscribeButton: true
  +showInfo: true
  +showMeta: true
  +showSectionTitle: true
  +stretchedLink: true
}
magazine_sub App\Twig\Components\MagazineSubComponent 14.0 MiB 0.45 ms
Input props 
[
  "magazine" => App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
]
Attributes 
[]
Component 
App\Twig\Components\MagazineSubComponent {#14648
  +magazine: App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
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    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
}
date App\Twig\Components\DateComponent 14.0 MiB 0.13 ms
Input props 
[
  "date" => DateTimeImmutable @1687144409 {#276
    date: 2023-06-19 05:13:29.0 +02:00
  }
]
Attributes 
[]
Component 
App\Twig\Components\DateComponent {#14760
  +date: DateTimeImmutable @1687144409 {#276
    date: 2023-06-19 05:13:29.0 +02:00
  }
}
user_inline App\Twig\Components\UserInlineComponent 14.0 MiB 0.52 ms
Input props 
[
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    +avatar: null
    +cover: null
    +email: "kbin@j0h.nl"
    +username: "Sprite_tm"
    +roles: [
      "ROLE_ADMIN"
    ]
    +followersCount: 0
    +homepage: "front"
    +about: "Hi! I'm Sprite_tm. You may know me from sites like https://spritesmods.com."
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      date: 2024-02-10 07:43:02.0 +01:00
    }
    +markedForDeletionAt: null
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    +oauthFacebookId: null
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    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
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    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
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    +addMentionsPosts: true
    +isBanned: false
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    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#14868 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#14870 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#14872 …}
    +entries: Doctrine\ORM\PersistentCollection {#14874 …}
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    +postCommentVotes: Doctrine\ORM\PersistentCollection {#14888 …}
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    +blockers: Doctrine\ORM\PersistentCollection {#14900 …}
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    +reports: Doctrine\ORM\PersistentCollection {#14906 …}
    +favourites: Doctrine\ORM\PersistentCollection {#14908 …}
    +violations: Doctrine\ORM\PersistentCollection {#14910 …}
    +notifications: Doctrine\ORM\PersistentCollection {#14912 …}
    +awards: Doctrine\ORM\PersistentCollection {#14914 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#14916 …}
    +categories: Doctrine\ORM\PersistentCollection {#14918 …}
    -id: 1
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    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#14920 …}
    +apId: null
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    +apPublicUrl: null
    +apFollowersUrl: null
    +apInboxUrl: null
    +apDomain: null
    +apPreferredUsername: null
    +apDiscoverable: null
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    +privateKey: """
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      """
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      """
    +apFetchedAt: null
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1686560440 {#14867
      date: 2023-06-12 11:00:40.0 +02:00
    }
    +__isInitialized__: true
     …2
  }
]
Attributes 
[]
Component 
App\Twig\Components\UserInlineComponent {#14837
  +user: Proxies\__CG__\App\Entity\User {#14819
    +avatar: null
    +cover: null
    +email: "kbin@j0h.nl"
    +username: "Sprite_tm"
    +roles: [
      "ROLE_ADMIN"
    ]
    +followersCount: 0
    +homepage: "front"
    +about: "Hi! I'm Sprite_tm. You may know me from sites like https://spritesmods.com."
    +lastActive: DateTime @1707547382 {#14866
      date: 2024-02-10 07:43:02.0 +01:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: true
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#14868 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#14870 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#14872 …}
    +entries: Doctrine\ORM\PersistentCollection {#14874 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#14876 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#14878 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#14880 …}
    +posts: Doctrine\ORM\PersistentCollection {#14882 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#14884 …}
    +postComments: Doctrine\ORM\PersistentCollection {#14886 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#14888 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#14890 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#14892 …}
    +follows: Doctrine\ORM\PersistentCollection {#14894 …}
    +followers: Doctrine\ORM\PersistentCollection {#14896 …}
    +blocks: Doctrine\ORM\PersistentCollection {#14898 …}
    +blockers: Doctrine\ORM\PersistentCollection {#14900 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#14902 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#14904 …}
    +reports: Doctrine\ORM\PersistentCollection {#14906 …}
    +favourites: Doctrine\ORM\PersistentCollection {#14908 …}
    +violations: Doctrine\ORM\PersistentCollection {#14910 …}
    +notifications: Doctrine\ORM\PersistentCollection {#14912 …}
    +awards: Doctrine\ORM\PersistentCollection {#14914 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#14916 …}
    +categories: Doctrine\ORM\PersistentCollection {#14918 …}
    -id: 1
    -password: "$2y$13$ZX7Aou2QOPRGkHPp4y5x8OWfxZMoT1BGH7bRLlPP7mwZFTkfiaPGG"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#14920 …}
    +apId: null
    +apProfileId: null
    +apPublicUrl: null
    +apFollowersUrl: null
    +apInboxUrl: null
    +apDomain: null
    +apPreferredUsername: null
    +apDiscoverable: null
    +apManuallyApprovesFollowers: null
    +privateKey: """
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      Cgb38EldyAVGjCzRGfhu9SNU9B03bg==\r\n
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      """
    +publicKey: """
      -----BEGIN PUBLIC KEY-----\r\n
      MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5XnqLc+UwYjJQmLCWCR1\r\n
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      U45ZxOEnTM9GSbe2y48JSnUCAwEAAQ==\r\n
      -----END PUBLIC KEY-----
      """
    +apFetchedAt: null
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1686560440 {#14867
      date: 2023-06-12 11:00:40.0 +02:00
    }
    +__isInitialized__: true
     …2
  }
  +showAvatar: true
}
related_magazines App\Twig\Components\RelatedMagazinesComponent 16.0 MiB 10.26 ms
Input props 
[
  "magazine" => "askelectronics@discuss.tchncs.de"
  "tag" => null
]
Attributes 
[]
Component 
App\Twig\Components\RelatedMagazinesComponent {#15028
  +limit: 4
  +tag: null
  +magazine: "askelectronics@discuss.tchncs.de"
  +type: "magazine"
  +title: "related_magazines"
  +refreshedRandom: false
  -repository: App\Repository\MagazineRepository {#334 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -twig: Twig\Environment {#1252 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
}
active_users App\Twig\Components\ActiveUsersComponent 16.0 MiB 69.28 ms
Input props 
[
  "magazine" => App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
]
Attributes 
[]
Component 
App\Twig\Components\ActiveUsersComponent {#15154
  +magazine: App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
  -userRepository: App\Repository\UserRepository {#603 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -twig: Twig\Environment {#1252 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
}
user_avatar App\Twig\Components\UserAvatarComponent 16.0 MiB 0.44 ms
Input props 
[
  "user" => App\Entity\User {#15226
    +avatar: Proxies\__CG__\App\Entity\Image {#15225 …}
    +cover: Proxies\__CG__\App\Entity\Image {#15224 …}
    +email: "TCB13@lemmy.world"
    +username: "@TCB13@lemmy.world"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: ""
    +lastActive: DateTime @1729518803 {#15229
      date: 2024-10-21 15:53:23.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15223 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15171 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15173 …}
    +entries: Doctrine\ORM\PersistentCollection {#15178 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15180 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15177 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15187 …}
    +posts: Doctrine\ORM\PersistentCollection {#15188 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15189 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15192 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15195 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15197 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15200 …}
    +follows: Doctrine\ORM\PersistentCollection {#15202 …}
    +followers: Doctrine\ORM\PersistentCollection {#15205 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15190 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15211 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15613 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15605 …}
    +reports: Doctrine\ORM\PersistentCollection {#15416 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15420 …}
    +violations: Doctrine\ORM\PersistentCollection {#15615 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15612 …}
    +awards: Doctrine\ORM\PersistentCollection {#15609 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15603 …}
    +categories: Doctrine\ORM\PersistentCollection {#15606 …}
    -id: 43677
    -password: "$2y$13$67WvGuLt4FPbc4trvxnH0ODZHTvTlMWI7kaafAJZUzYiSsXw.KDqi"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15604 …}
    +apId: "TCB13@lemmy.world"
    +apProfileId: "https://lemmy.world/u/TCB13"
    +apPublicUrl: "https://lemmy.world/u/TCB13"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.world/inbox"
    +apDomain: "lemmy.world"
    +apPreferredUsername: "TCB13"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1729566764 {#15228
      date: 2024-10-22 05:12:44.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1693492241 {#15227
      date: 2023-08-31 16:30:41.0 +02:00
    }
  }
  "width" => 65
  "height" => 65
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#15210
  +width: 65
  +height: 65
  +user: App\Entity\User {#15226
    +avatar: Proxies\__CG__\App\Entity\Image {#15225 …}
    +cover: Proxies\__CG__\App\Entity\Image {#15224 …}
    +email: "TCB13@lemmy.world"
    +username: "@TCB13@lemmy.world"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: ""
    +lastActive: DateTime @1729518803 {#15229
      date: 2024-10-21 15:53:23.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15223 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15171 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15173 …}
    +entries: Doctrine\ORM\PersistentCollection {#15178 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15180 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15177 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15187 …}
    +posts: Doctrine\ORM\PersistentCollection {#15188 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15189 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15192 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15195 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15197 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15200 …}
    +follows: Doctrine\ORM\PersistentCollection {#15202 …}
    +followers: Doctrine\ORM\PersistentCollection {#15205 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15190 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15211 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15613 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15605 …}
    +reports: Doctrine\ORM\PersistentCollection {#15416 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15420 …}
    +violations: Doctrine\ORM\PersistentCollection {#15615 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15612 …}
    +awards: Doctrine\ORM\PersistentCollection {#15609 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15603 …}
    +categories: Doctrine\ORM\PersistentCollection {#15606 …}
    -id: 43677
    -password: "$2y$13$67WvGuLt4FPbc4trvxnH0ODZHTvTlMWI7kaafAJZUzYiSsXw.KDqi"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15604 …}
    +apId: "TCB13@lemmy.world"
    +apProfileId: "https://lemmy.world/u/TCB13"
    +apPublicUrl: "https://lemmy.world/u/TCB13"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.world/inbox"
    +apDomain: "lemmy.world"
    +apPreferredUsername: "TCB13"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1729566764 {#15228
      date: 2024-10-22 05:12:44.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1693492241 {#15227
      date: 2023-08-31 16:30:41.0 +02:00
    }
  }
  +asLink: true
}
user_avatar App\Twig\Components\UserAvatarComponent 16.0 MiB 1.21 ms
Input props 
[
  "user" => App\Entity\User {#15286
    +avatar: Proxies\__CG__\App\Entity\Image {#15285 …}
    +cover: Proxies\__CG__\App\Entity\Image {#15284 …}
    +email: "vfrmedia@social.tchncs.de"
    +username: "@vfrmedia@social.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Old roaming Tom Cat (zwerfkater) but still young at heart. Toots EN, (NL,FR,DE). [#DevOpa](https://social.tchncs.de/tags/DevOpa) - interested more in retro tech / culture / aesthetics than new stuff. Also transport and public infrastructure in general (with a UK/European focus)\n
      \n
      Welcome to the secret goose shed!\n
      \n
      Avatar is a tabby point Siamese cat - header picture is a Stentor FM radio transmitter designed in the Netherlands; popular with small pirate radio broadcasters in late 1980s
      """
    +lastActive: DateTime @1692636225 {#15287
      date: 2023-08-21 18:43:45.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15283 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15281 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15279 …}
    +entries: Doctrine\ORM\PersistentCollection {#15277 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15275 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15273 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15271 …}
    +posts: Doctrine\ORM\PersistentCollection {#15269 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15267 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15265 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15263 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15261 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15259 …}
    +follows: Doctrine\ORM\PersistentCollection {#15257 …}
    +followers: Doctrine\ORM\PersistentCollection {#15255 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15253 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15251 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15249 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15247 …}
    +reports: Doctrine\ORM\PersistentCollection {#15245 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15243 …}
    +violations: Doctrine\ORM\PersistentCollection {#15241 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15239 …}
    +awards: Doctrine\ORM\PersistentCollection {#15237 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15235 …}
    +categories: Doctrine\ORM\PersistentCollection {#15233 …}
    -id: 41651
    -password: "$2y$13$MR/jvQLw20snj7dhCUOzrerIeJOUi.vmMEXqlAliA6M/KYuWQH.Sa"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15231 …}
    +apId: "vfrmedia@social.tchncs.de"
    +apProfileId: "https://social.tchncs.de/users/vfrmedia"
    +apPublicUrl: "https://social.tchncs.de/@vfrmedia"
    +apFollowersUrl: "https://social.tchncs.de/users/vfrmedia/followers"
    +apInboxUrl: "https://social.tchncs.de/inbox"
    +apDomain: "social.tchncs.de"
    +apPreferredUsername: "vfrmedia"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1692636225 {#15288
      date: 2023-08-21 18:43:45.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1692554254 {#15289
      date: 2023-08-20 19:57:34.0 +02:00
    }
  }
  "width" => 65
  "height" => 65
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#15551
  +width: 65
  +height: 65
  +user: App\Entity\User {#15286
    +avatar: Proxies\__CG__\App\Entity\Image {#15285 …}
    +cover: Proxies\__CG__\App\Entity\Image {#15284 …}
    +email: "vfrmedia@social.tchncs.de"
    +username: "@vfrmedia@social.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Old roaming Tom Cat (zwerfkater) but still young at heart. Toots EN, (NL,FR,DE). [#DevOpa](https://social.tchncs.de/tags/DevOpa) - interested more in retro tech / culture / aesthetics than new stuff. Also transport and public infrastructure in general (with a UK/European focus)\n
      \n
      Welcome to the secret goose shed!\n
      \n
      Avatar is a tabby point Siamese cat - header picture is a Stentor FM radio transmitter designed in the Netherlands; popular with small pirate radio broadcasters in late 1980s
      """
    +lastActive: DateTime @1692636225 {#15287
      date: 2023-08-21 18:43:45.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15283 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15281 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15279 …}
    +entries: Doctrine\ORM\PersistentCollection {#15277 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15275 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15273 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15271 …}
    +posts: Doctrine\ORM\PersistentCollection {#15269 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15267 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15265 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15263 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15261 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15259 …}
    +follows: Doctrine\ORM\PersistentCollection {#15257 …}
    +followers: Doctrine\ORM\PersistentCollection {#15255 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15253 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15251 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15249 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15247 …}
    +reports: Doctrine\ORM\PersistentCollection {#15245 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15243 …}
    +violations: Doctrine\ORM\PersistentCollection {#15241 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15239 …}
    +awards: Doctrine\ORM\PersistentCollection {#15237 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15235 …}
    +categories: Doctrine\ORM\PersistentCollection {#15233 …}
    -id: 41651
    -password: "$2y$13$MR/jvQLw20snj7dhCUOzrerIeJOUi.vmMEXqlAliA6M/KYuWQH.Sa"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15231 …}
    +apId: "vfrmedia@social.tchncs.de"
    +apProfileId: "https://social.tchncs.de/users/vfrmedia"
    +apPublicUrl: "https://social.tchncs.de/@vfrmedia"
    +apFollowersUrl: "https://social.tchncs.de/users/vfrmedia/followers"
    +apInboxUrl: "https://social.tchncs.de/inbox"
    +apDomain: "social.tchncs.de"
    +apPreferredUsername: "vfrmedia"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1692636225 {#15288
      date: 2023-08-21 18:43:45.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1692554254 {#15289
      date: 2023-08-20 19:57:34.0 +02:00
    }
  }
  +asLink: true
}
user_avatar App\Twig\Components\UserAvatarComponent 16.0 MiB 1.80 ms
Input props 
[
  "user" => App\Entity\User {#15404
    +avatar: Proxies\__CG__\App\Entity\Image {#15403 …}
    +cover: null
    +email: "jarrodsfarrell@hoosier.social"
    +username: "@jarrodsfarrell@hoosier.social"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Grounded tech enthusiast, Linux enjoyer, and Indy 500 wannabe that lives in south-east Indiana.  \n
      Go pride. [#LGBTQ](https://hoosier.social/tags/LGBTQ)
      """
    +lastActive: DateTime @1690728142 {#15407
      date: 2023-07-30 16:42:22.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15402 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15400 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15398 …}
    +entries: Doctrine\ORM\PersistentCollection {#15396 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15394 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15392 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15390 …}
    +posts: Doctrine\ORM\PersistentCollection {#15388 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15386 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15384 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15382 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15380 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15378 …}
    +follows: Doctrine\ORM\PersistentCollection {#15376 …}
    +followers: Doctrine\ORM\PersistentCollection {#15374 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15372 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15370 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15368 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15366 …}
    +reports: Doctrine\ORM\PersistentCollection {#15364 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15362 …}
    +violations: Doctrine\ORM\PersistentCollection {#15360 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15358 …}
    +awards: Doctrine\ORM\PersistentCollection {#15356 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15354 …}
    +categories: Doctrine\ORM\PersistentCollection {#15352 …}
    -id: 20657
    -password: "$2y$13$XNERcrvg1/EZkZQbKQ6R6efd5bjo3rlAJRSz0lDRnfkNCV76hr5Me"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15350 …}
    +apId: "jarrodsfarrell@hoosier.social"
    +apProfileId: "https://hoosier.social/users/jarrodsfarrell"
    +apPublicUrl: "https://hoosier.social/@jarrodsfarrell"
    +apFollowersUrl: "https://hoosier.social/users/jarrodsfarrell/followers"
    +apInboxUrl: "https://hoosier.social/inbox"
    +apDomain: "hoosier.social"
    +apPreferredUsername: "jarrodsfarrell"
    +apDiscoverable: false
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1690726862 {#15406
      date: 2023-07-30 16:21:02.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1688878027 {#15405
      date: 2023-07-09 06:47:07.0 +02:00
    }
  }
  "width" => 65
  "height" => 65
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#15486
  +width: 65
  +height: 65
  +user: App\Entity\User {#15404
    +avatar: Proxies\__CG__\App\Entity\Image {#15403 …}
    +cover: null
    +email: "jarrodsfarrell@hoosier.social"
    +username: "@jarrodsfarrell@hoosier.social"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Grounded tech enthusiast, Linux enjoyer, and Indy 500 wannabe that lives in south-east Indiana.  \n
      Go pride. [#LGBTQ](https://hoosier.social/tags/LGBTQ)
      """
    +lastActive: DateTime @1690728142 {#15407
      date: 2023-07-30 16:42:22.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15402 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15400 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15398 …}
    +entries: Doctrine\ORM\PersistentCollection {#15396 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15394 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15392 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15390 …}
    +posts: Doctrine\ORM\PersistentCollection {#15388 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15386 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15384 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15382 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15380 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15378 …}
    +follows: Doctrine\ORM\PersistentCollection {#15376 …}
    +followers: Doctrine\ORM\PersistentCollection {#15374 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15372 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15370 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15368 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15366 …}
    +reports: Doctrine\ORM\PersistentCollection {#15364 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15362 …}
    +violations: Doctrine\ORM\PersistentCollection {#15360 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15358 …}
    +awards: Doctrine\ORM\PersistentCollection {#15356 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15354 …}
    +categories: Doctrine\ORM\PersistentCollection {#15352 …}
    -id: 20657
    -password: "$2y$13$XNERcrvg1/EZkZQbKQ6R6efd5bjo3rlAJRSz0lDRnfkNCV76hr5Me"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15350 …}
    +apId: "jarrodsfarrell@hoosier.social"
    +apProfileId: "https://hoosier.social/users/jarrodsfarrell"
    +apPublicUrl: "https://hoosier.social/@jarrodsfarrell"
    +apFollowersUrl: "https://hoosier.social/users/jarrodsfarrell/followers"
    +apInboxUrl: "https://hoosier.social/inbox"
    +apDomain: "hoosier.social"
    +apPreferredUsername: "jarrodsfarrell"
    +apDiscoverable: false
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1690726862 {#15406
      date: 2023-07-30 16:21:02.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1688878027 {#15405
      date: 2023-07-09 06:47:07.0 +02:00
    }
  }
  +asLink: true
}
user_avatar App\Twig\Components\UserAvatarComponent 16.0 MiB 0.18 ms
Input props 
[
  "user" => App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#4025 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#4023 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
    +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
    +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#4153 …}
    +categories: Doctrine\ORM\PersistentCollection {#4146 …}
    -id: 39464
    -password: "$2y$13$wQAP4Gif3ESopfZf00xAU.zwr9iTTX.ev3twB9omsse0v00sxuD/G"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
    +apId: "skillissuer@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/u/skillissuer"
    +apPublicUrl: "https://discuss.tchncs.de/u/skillissuer"
    +apFollowersUrl: null
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "skillissuer"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1728245617 {#4104
      date: 2024-10-06 22:13:37.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
    }
  }
  "width" => 65
  "height" => 65
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#15425
  +width: 65
  +height: 65
  +user: App\Entity\User {#4049
    +avatar: Proxies\__CG__\App\Entity\Image {#4050 …}
    +cover: null
    +email: "skillissuer@discuss.tchncs.de"
    +username: "@skillissuer@discuss.tchncs.de"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: "i should be writing"
    +lastActive: DateTime @1721044672 {#4106
      date: 2024-07-15 13:57:52.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: false
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: true
    +notifyOnNewEntryCommentReply: true
    +notifyOnNewPost: false
    +notifyOnNewPostReply: true
    +notifyOnNewPostCommentReply: true
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#4054 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#4046 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#4044 …}
    +entries: Doctrine\ORM\PersistentCollection {#4042 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#4039 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#4037 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#4034 …}
    +posts: Doctrine\ORM\PersistentCollection {#4032 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#4030 …}
    +postComments: Doctrine\ORM\PersistentCollection {#4027 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#4025 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#4023 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#4166 …}
    +follows: Doctrine\ORM\PersistentCollection {#4162 …}
    +followers: Doctrine\ORM\PersistentCollection {#4151 …}
    +blocks: Doctrine\ORM\PersistentCollection {#4142 …}
    +blockers: Doctrine\ORM\PersistentCollection {#4131 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#4168 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#4165 …}
    +reports: Doctrine\ORM\PersistentCollection {#4128 …}
    +favourites: Doctrine\ORM\PersistentCollection {#4155 …}
    +violations: Doctrine\ORM\PersistentCollection {#4158 …}
    +notifications: Doctrine\ORM\PersistentCollection {#4156 …}
    +awards: Doctrine\ORM\PersistentCollection {#4154 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#4153 …}
    +categories: Doctrine\ORM\PersistentCollection {#4146 …}
    -id: 39464
    -password: "$2y$13$wQAP4Gif3ESopfZf00xAU.zwr9iTTX.ev3twB9omsse0v00sxuD/G"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#4140 …}
    +apId: "skillissuer@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/u/skillissuer"
    +apPublicUrl: "https://discuss.tchncs.de/u/skillissuer"
    +apFollowersUrl: null
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "skillissuer"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1728245617 {#4104
      date: 2024-10-06 22:13:37.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1691480767 {#4103
      date: 2023-08-08 09:46:07.0 +02:00
    }
  }
  +asLink: true
}
user_avatar App\Twig\Components\UserAvatarComponent 16.0 MiB 1.40 ms
Input props 
[
  "user" => App\Entity\User {#15345
    +avatar: Proxies\__CG__\App\Entity\Image {#15344 …}
    +cover: null
    +email: "birdcat@lemmy.ml"
    +username: "@birdcat@lemmy.ml"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Appreciate and upvote every reply to my comments/posts if I can detect any effort being put into it; even if I think you completely missed what I tried to say or strongly disagree with your opinion.\n
      \n
      Occasionally I cannot resist shitposting, hyperbolic, ironic, sarcastic or populist rhetoric; no /s
      """
    +lastActive: DateTime @1696696022 {#15348
      date: 2023-10-07 18:27:02.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15343 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15341 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15339 …}
    +entries: Doctrine\ORM\PersistentCollection {#15337 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15335 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15333 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15331 …}
    +posts: Doctrine\ORM\PersistentCollection {#15329 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15327 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15325 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15323 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15321 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15319 …}
    +follows: Doctrine\ORM\PersistentCollection {#15317 …}
    +followers: Doctrine\ORM\PersistentCollection {#15315 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15313 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15311 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15309 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15307 …}
    +reports: Doctrine\ORM\PersistentCollection {#15305 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15303 …}
    +violations: Doctrine\ORM\PersistentCollection {#15301 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15299 …}
    +awards: Doctrine\ORM\PersistentCollection {#15297 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15295 …}
    +categories: Doctrine\ORM\PersistentCollection {#15293 …}
    -id: 21796
    -password: "$2y$13$ACNmoGKWwRgm/Njn146GG.b25O8.XXYtlu6ZukGNMl7KWiROcYuzK"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15291 …}
    +apId: "birdcat@lemmy.ml"
    +apProfileId: "https://lemmy.ml/u/birdcat"
    +apPublicUrl: "https://lemmy.ml/u/birdcat"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.ml/inbox"
    +apDomain: "lemmy.ml"
    +apPreferredUsername: "birdcat"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1719824521 {#15347
      date: 2024-07-01 11:02:01.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1689039812 {#15346
      date: 2023-07-11 03:43:32.0 +02:00
    }
  }
  "width" => 65
  "height" => 65
  "asLink" => true
]
Attributes 
[]
Component 
App\Twig\Components\UserAvatarComponent {#15670
  +width: 65
  +height: 65
  +user: App\Entity\User {#15345
    +avatar: Proxies\__CG__\App\Entity\Image {#15344 …}
    +cover: null
    +email: "birdcat@lemmy.ml"
    +username: "@birdcat@lemmy.ml"
    +roles: []
    +followersCount: 0
    +homepage: "front"
    +about: """
      Appreciate and upvote every reply to my comments/posts if I can detect any effort being put into it; even if I think you completely missed what I tried to say or strongly disagree with your opinion.\n
      \n
      Occasionally I cannot resist shitposting, hyperbolic, ironic, sarcastic or populist rhetoric; no /s
      """
    +lastActive: DateTime @1696696022 {#15348
      date: 2023-10-07 18:27:02.0 +02:00
    }
    +markedForDeletionAt: null
    +fields: null
    +oauthGithubId: null
    +oauthGoogleId: null
    +oauthFacebookId: null
    +oauthKeycloakId: null
    +hideAdult: true
    +showSubscribedUsers: true
    +showSubscribedMagazines: true
    +showSubscribedDomains: true
    +preferredLanguages: []
    +featuredMagazines: null
    +showProfileSubscriptions: true
    +showProfileFollowings: true
    +markNewComments: false
    +notifyOnNewEntry: false
    +notifyOnNewEntryReply: false
    +notifyOnNewEntryCommentReply: false
    +notifyOnNewPost: false
    +notifyOnNewPostReply: false
    +notifyOnNewPostCommentReply: false
    +addMentionsEntries: false
    +addMentionsPosts: true
    +isBanned: false
    +isVerified: false
    +isDeleted: false
    +isBot: false
    +spamProtection: true
    +customCss: null
    +ignoreMagazinesCustomCss: false
    +moderatorTokens: Doctrine\ORM\PersistentCollection {#15343 …}
    +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#15341 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#15339 …}
    +entries: Doctrine\ORM\PersistentCollection {#15337 …}
    +entryVotes: Doctrine\ORM\PersistentCollection {#15335 …}
    +entryComments: Doctrine\ORM\PersistentCollection {#15333 …}
    +entryCommentVotes: Doctrine\ORM\PersistentCollection {#15331 …}
    +posts: Doctrine\ORM\PersistentCollection {#15329 …}
    +postVotes: Doctrine\ORM\PersistentCollection {#15327 …}
    +postComments: Doctrine\ORM\PersistentCollection {#15325 …}
    +postCommentVotes: Doctrine\ORM\PersistentCollection {#15323 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#15321 …}
    +subscribedDomains: Doctrine\ORM\PersistentCollection {#15319 …}
    +follows: Doctrine\ORM\PersistentCollection {#15317 …}
    +followers: Doctrine\ORM\PersistentCollection {#15315 …}
    +blocks: Doctrine\ORM\PersistentCollection {#15313 …}
    +blockers: Doctrine\ORM\PersistentCollection {#15311 …}
    +blockedMagazines: Doctrine\ORM\PersistentCollection {#15309 …}
    +blockedDomains: Doctrine\ORM\PersistentCollection {#15307 …}
    +reports: Doctrine\ORM\PersistentCollection {#15305 …}
    +favourites: Doctrine\ORM\PersistentCollection {#15303 …}
    +violations: Doctrine\ORM\PersistentCollection {#15301 …}
    +notifications: Doctrine\ORM\PersistentCollection {#15299 …}
    +awards: Doctrine\ORM\PersistentCollection {#15297 …}
    +subscribedCategories: Doctrine\ORM\PersistentCollection {#15295 …}
    +categories: Doctrine\ORM\PersistentCollection {#15293 …}
    -id: 21796
    -password: "$2y$13$ACNmoGKWwRgm/Njn146GG.b25O8.XXYtlu6ZukGNMl7KWiROcYuzK"
    -totpSecret: null
    -totpBackupCodes: []
    -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#15291 …}
    +apId: "birdcat@lemmy.ml"
    +apProfileId: "https://lemmy.ml/u/birdcat"
    +apPublicUrl: "https://lemmy.ml/u/birdcat"
    +apFollowersUrl: null
    +apInboxUrl: "https://lemmy.ml/inbox"
    +apDomain: "lemmy.ml"
    +apPreferredUsername: "birdcat"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: false
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1719824521 {#15347
      date: 2024-07-01 11:02:01.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1689039812 {#15346
      date: 2023-07-11 03:43:32.0 +02:00
    }
  }
  +asLink: true
}
related_categories App\Twig\Components\RelatedCategoriesComponent 16.0 MiB 18.54 ms
Input props 
[
  "magazine" => "askelectronics@discuss.tchncs.de"
  "tag" => null
]
Attributes 
[]
Component 
App\Twig\Components\RelatedCategoriesComponent {#15738
  +limit: 4
  +tag: null
  +magazine: "askelectronics@discuss.tchncs.de"
  +type: "related"
  +title: "related_categories"
  +refreshedRandom: false
  -repository: App\Repository\CategoryRepository {#15739 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -twig: Twig\Environment {#1252 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
}
related_posts App\Twig\Components\RelatedPostsComponent 16.0 MiB 6.12 ms
Input props 
[
  "magazine" => "askelectronics@discuss.tchncs.de"
  "tag" => null
]
Attributes 
[]
Component 
App\Twig\Components\RelatedPostsComponent {#15815
  +limit: 4
  +tag: null
  +magazine: "askelectronics@discuss.tchncs.de"
  +type: "magazine"
  +post: null
  +title: "related_posts"
  +refreshedRandom: false
  -repository: App\Repository\PostRepository {#15816 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -twig: Twig\Environment {#1252 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
  -mentionManager: App\Service\MentionManager {#390 …}
}
related_entries App\Twig\Components\RelatedEntriesComponent 16.0 MiB 18.68 ms
Input props 
[
  "magazine" => "askelectronics@discuss.tchncs.de"
  "tag" => null
]
Attributes 
[]
Component 
App\Twig\Components\RelatedEntriesComponent {#15936
  +limit: 4
  +tag: null
  +magazine: "askelectronics@discuss.tchncs.de"
  +type: "magazine"
  +entry: null
  +title: "related_entries"
  +refreshedRandom: false
  -repository: App\Repository\EntryRepository {#335 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -twig: Twig\Environment {#1252 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
  -mentionManager: App\Service\MentionManager {#390 …}
}
support_us_block App\Twig\Components\SupportUsBlock 16.0 MiB 0.47 ms
Input props 
[]
Attributes 
[]
Component 
App\Twig\Components\SupportUsBlock {#15991
  +subject: ? App\Entity\Contracts\VotableInterface
  +url: ? string
  -twig: Twig\Environment {#1252 …}
  -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …}
  -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …}
  -partnerBlockRepository: App\Repository\PartnerBlockRepository {#15990 …}
}
featured_magazines App\Twig\Components\FeaturedMagazinesComponent 16.0 MiB 0.93 ms
Input props 
[
  "magazine" => App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
]
Attributes 
[]
Component 
App\Twig\Components\FeaturedMagazinesComponent {#16066
  +magazine: App\Entity\Magazine {#262
    +icon: Proxies\__CG__\App\Entity\Image {#242 …}
    +name: "askelectronics@discuss.tchncs.de"
    +title: "askelectronics"
    +description: """
      **For questions about component-level electronic circuits, tools and equipment.**\n
      \n
      Rules\n
      -----\n
      \n
      1: Be nice.\n
      \n
      2: Be on-topic (eg: *Electronic*, not *electrical*).\n
      \n
      3: No commercial stuff, buying, selling or valuations.\n
      \n
      4: Be safe.\n
      \n
      ---
      """
    +rules: null
    +subscriptionsCount: 1
    +entryCount: 154
    +entryCommentCount: 1230
    +postCount: 1
    +postCommentCount: 4
    +isAdult: false
    +customCss: null
    +lastActive: DateTime @1729413608 {#270
      date: 2024-10-20 10:40:08.0 +02:00
    }
    +markedForDeletionAt: null
    +tags: null
    +moderators: Doctrine\ORM\PersistentCollection {#233 …}
    +ownershipRequests: Doctrine\ORM\PersistentCollection {#229 …}
    +moderatorRequests: Doctrine\ORM\PersistentCollection {#218 …}
    +entries: Doctrine\ORM\PersistentCollection {#176 …}
    +posts: Doctrine\ORM\PersistentCollection {#134 …}
    +subscriptions: Doctrine\ORM\PersistentCollection {#196 …}
    +bans: Doctrine\ORM\PersistentCollection {#113 …}
    +reports: Doctrine\ORM\PersistentCollection {#99 …}
    +badges: Doctrine\ORM\PersistentCollection {#77 …}
    +logs: Doctrine\ORM\PersistentCollection {#67 …}
    +awards: Doctrine\ORM\PersistentCollection {#2434 …}
    +categories: Doctrine\ORM\PersistentCollection {#1804 …}
    -id: 11
    +apId: "askelectronics@discuss.tchncs.de"
    +apProfileId: "https://discuss.tchncs.de/c/askelectronics"
    +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics"
    +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers"
    +apInboxUrl: "https://discuss.tchncs.de/inbox"
    +apDomain: "discuss.tchncs.de"
    +apPreferredUsername: "askelectronics"
    +apDiscoverable: true
    +apManuallyApprovesFollowers: null
    +privateKey: null
    +publicKey: null
    +apFetchedAt: DateTime @1727247714 {#268
      date: 2024-09-25 09:01:54.0 +02:00
    }
    +apDeletedAt: null
    +apTimeoutAt: null
    +visibility: "visible             "
    +createdAt: DateTimeImmutable @1687144409 {#276
      date: 2023-06-19 05:13:29.0 +02:00
    }
  }
  -twig: Twig\Environment {#1252 …}
  -repository: App\Repository\MagazineRepository {#334 …}
}