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Show voter details
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moderate
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App\Entity\Entry {#2419
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\n
Rules\n
-----\n
\n
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\n
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
I had to pull-down the gates as I had some flickering, and it works perfectly if I manually connect the GPIOs **after** the ESP-01S boots.\n
\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
"""
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Show voter details
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edit
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App\Entity\Entry {#2419
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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
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
I had to pull-down the gates as I had some flickering, and it works perfectly if I manually connect the GPIOs **after** the ESP-01S boots.\n
\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
"""
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} |
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Show voter details
|
| 4 |
DENIED
|
moderate
|
App\Entity\Entry {#2419
+user: Proxies\__CG__\App\Entity\User {#1970 …}
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+icon: Proxies\__CG__\App\Entity\Image {#246 …}
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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
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---
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
I had to pull-down the gates as I had some flickering, and it works perfectly if I manually connect the GPIOs **after** the ESP-01S boots.\n
\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
"""
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|
Show voter details
|
| 5 |
DENIED
|
ROLE_USER
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null |
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Show voter details
|
| 6 |
DENIED
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moderate
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App\Entity\EntryComment {#4026
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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
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\n
3: No commercial stuff, buying, selling or valuations.\n
\n
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
I had to pull-down the gates as I had some flickering, and it works perfectly if I manually connect the GPIOs **after** the ESP-01S boots.\n
\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
"""
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+body: "Would a circuit like [this power-on reset circuit](https://electronics.stackexchange.com/questions/630155/question-about-capacitor-and-resistor-in-power-on-reset-circuit) work for your application?"
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Show voter details
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| 7 |
DENIED
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edit
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App\Entity\EntryComment {#4026
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Rules\n
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
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\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
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Show voter details
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| 8 |
DENIED
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moderate
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App\Entity\EntryComment {#4026
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\n
Rules\n
-----\n
\n
1: Be nice.\n
\n
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\n
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Hi everyone!\n
\n
I’m trying to control a “dumb” led light strip segment with an ESP-01S. This is fairly low current, the strip will pull 150mA-200mA max (depends on… artistic? needs).\n
\n
I have two NPN transistors (2N2222), one to control the 12V supply to the white “channel” and the other the red+blue (don’t need the green).\n
\n
I had to pull-down the gates as I had some flickering, and it works perfectly if I manually connect the GPIOs **after** the ESP-01S boots.\n
\n
The ESP will boot if I have the RX pin (GPIO03) pulled down on boot, but not if I pull down any of the others.\n
\n
I’m not smart enough to come up with a way to have that extra pin I need to be high only during boot, while the gate it’s attached to needs to be pulled down…\n
\n
Any thought, other than getting something with more IO pins?
"""
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Show voter details
|
| 9 |
DENIED
|
edit
|
App\Entity\Magazine {#265
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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
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\n
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