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      I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
      \n
      It kind of works - at least sometimes, but I keep “losing” sensors more or less randomly.\n
      \n
      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
      \n
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      \n
      1. DHT20 fails to init - sometimes after the first read, sometimes after days. Resetting the machine works sometimes, if not, power cycling usually does the trick\n
      2. The board just “stops” after about 5min - the serial console just says “device disconnected”. Power cycling is the only option.\n
      \n
      My measurement work by having a timer fire every minute, connect to wifi, read from the sensor, and then send an mqtt message (either the values or an error message) and shutdown wifi again.\n
      \n
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      \n
      - There is some kind of “rogue current” messing with some IC.\n
      - Some component is broken\n
      - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
      \n
      For me the problem is, I don’t really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.
      """
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App\Twig\Components\DateComponent {#3251
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        Rules\n
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      I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
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      It kind of works - at least sometimes, but I keep “losing” sensors more or less randomly.\n
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      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
      \n
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      2. The board just “stops” after about 5min - the serial console just says “device disconnected”. Power cycling is the only option.\n
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      - Some component is broken\n
      - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
      \n
      For me the problem is, I don’t really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.
      """
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App\Twig\Components\VoteComponent {#3380
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      \n
      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
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      - Some component is broken\n
      - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
      \n
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      I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
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      \n
      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
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      I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
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      \n
      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
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      - Some component is broken\n
      - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
      \n
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      I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
      \n
      It kind of works - at least sometimes, but I keep “losing” sensors more or less randomly.\n
      \n
      I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
      \n
      The error modes I could observe are:\n
      \n
      1. DHT20 fails to init - sometimes after the first read, sometimes after days. Resetting the machine works sometimes, if not, power cycling usually does the trick\n
      2. The board just “stops” after about 5min - the serial console just says “device disconnected”. Power cycling is the only option.\n
      \n
      My measurement work by having a timer fire every minute, connect to wifi, read from the sensor, and then send an mqtt message (either the values or an error message) and shutdown wifi again.\n
      \n
      My current ideas why it could fail (but I’m not an electronics guy at all):\n
      \n
      - There is some kind of “rogue current” messing with some IC.\n
      - Some component is broken\n
      - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
      \n
      For me the problem is, I don’t really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.
      """
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        I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
        \n
        It kind of works - at least sometimes, but I keep “losing” sensors more or less randomly.\n
        \n
        I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
        \n
        The error modes I could observe are:\n
        \n
        1. DHT20 fails to init - sometimes after the first read, sometimes after days. Resetting the machine works sometimes, if not, power cycling usually does the trick\n
        2. The board just “stops” after about 5min - the serial console just says “device disconnected”. Power cycling is the only option.\n
        \n
        My measurement work by having a timer fire every minute, connect to wifi, read from the sensor, and then send an mqtt message (either the values or an error message) and shutdown wifi again.\n
        \n
        My current ideas why it could fail (but I’m not an electronics guy at all):\n
        \n
        - There is some kind of “rogue current” messing with some IC.\n
        - Some component is broken\n
        - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
        \n
        For me the problem is, I don’t really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.
        """
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      Do you have a pull up on the DHT20? If not that could explain the reliability issues. 4.7k is needed according to the datasheet.\n
      \n
      Not too familiar with the RPi Pico but you might need to disable the internal pull ups if you do that but they are likely too weak so I wouldn’t rely on them.
      """
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        I’m trying to use an RPi Pico W as a temp/humidity sensor using a DHT20.\n
        \n
        It kind of works - at least sometimes, but I keep “losing” sensors more or less randomly.\n
        \n
        I connected everything up like here (using MicroPython): [github.com/flrrth/pico-dht20](https://github.com/flrrth/pico-dht20)There are currently 4 sensor-boards, 3 soldered, one on a breadboard.\n
        \n
        The error modes I could observe are:\n
        \n
        1. DHT20 fails to init - sometimes after the first read, sometimes after days. Resetting the machine works sometimes, if not, power cycling usually does the trick\n
        2. The board just “stops” after about 5min - the serial console just says “device disconnected”. Power cycling is the only option.\n
        \n
        My measurement work by having a timer fire every minute, connect to wifi, read from the sensor, and then send an mqtt message (either the values or an error message) and shutdown wifi again.\n
        \n
        My current ideas why it could fail (but I’m not an electronics guy at all):\n
        \n
        - There is some kind of “rogue current” messing with some IC.\n
        - Some component is broken\n
        - Maybe the power draw is too low or issuing sleep() messes with the USB-power connection somehow?\n
        \n
        For me the problem is, I don’t really know where to look for errors. The software works in principle, the soldering seems to be good enough to sometimes work for days, and looking too deep into the whole electronics side is beyond my capabilities.
        """
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      Do you have a pull up on the DHT20? If not that could explain the reliability issues. 4.7k is needed according to the datasheet.\n
      \n
      Not too familiar with the RPi Pico but you might need to disable the internal pull ups if you do that but they are likely too weak so I wouldn’t rely on them.
      """
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