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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
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      \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 {#3246
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        Rules\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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      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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      \n
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      \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 {#3375
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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
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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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      +body: """
        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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      Perhaps slightly adjust your logic a little and see what it does.\n
      \n
      Read from the sensors first, then enable and connect to wifi, send the data, then disconnect. That would reduce the maximum power draw as only one function is active at once.\n
      \n
      Small edit: I have a MagTag ESP32 board with circuitpython that can’t read onewire devices while the wifi is active. Whether that’s because of supply instabilities when wifi is transmitting, or interrupt conflicts, or just plain poor programming in the onewire drivers or the wifi drivers, I don’t know. But reading the devices first and then connecting to wifi and sending the data afterwards works.
      """
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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
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        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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      Perhaps slightly adjust your logic a little and see what it does.\n
      \n
      Read from the sensors first, then enable and connect to wifi, send the data, then disconnect. That would reduce the maximum power draw as only one function is active at once.\n
      \n
      Small edit: I have a MagTag ESP32 board with circuitpython that can’t read onewire devices while the wifi is active. Whether that’s because of supply instabilities when wifi is transmitting, or interrupt conflicts, or just plain poor programming in the onewire drivers or the wifi drivers, I don’t know. But reading the devices first and then connecting to wifi and sending the data afterwards works.
      """
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