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A New Chapter for MagicMirror: The Community Takes the Lead
Read the statement by Michael Teeuw here.

No reading from DHT sensor

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  • J Offline
    Johans
    last edited by Oct 28, 2017, 11:20 PM

    Re: MMM-DHT22 Humidity and Temperature Module

    installed modules as described in read.me file but I get no reading of temp or hum.
    sensor is working, tested with AdaFruit example

    • sudo ./AdafruitDHT.py 2302 27 (Data connected to gpio 27)
      I get a perfect temp & hum reading, so i’m shure sensor is working.

    i’m using an RPI3 - according to wiring pin, wpi 2 = gpio27 = physical pin 13.
    I think wiring is OK.
    anybody can help solving this.
    thx

    1 Reply Last reply Reply Quote 0
    • J Offline
      Johans
      last edited by Oct 29, 2017, 9:39 PM

      nobody to help?

      1 Reply Last reply Reply Quote 0
      • C Offline
        cowboysdude Module Developer
        last edited by Oct 29, 2017, 9:48 PM

        Why aren’t you asking in the forum post for the module?

        https://forum.magicmirror.builders/topic/738/mmm-dht22-humidity-and-temperature-module

        J 1 Reply Last reply Oct 29, 2017, 9:55 PM Reply Quote 0
        • J Offline
          Johans @cowboysdude
          last edited by Oct 29, 2017, 9:55 PM

          @cowboysdude
          I did, but got message that topic where old and that is was better to create new topic - so i did.
          anyhow i’ll post it there as well

          C 1 Reply Last reply Oct 29, 2017, 10:44 PM Reply Quote 1
          • C Offline
            cowboysdude Module Developer @Johans
            last edited by Oct 29, 2017, 10:44 PM

            @Johans Ok when you start MM what does the developers window say? Any errors?

            J 1 Reply Last reply Oct 30, 2017, 9:20 PM Reply Quote 0
            • J Offline
              Johans @cowboysdude
              last edited by Oct 30, 2017, 9:20 PM

              @cowboysdude
              nothing, all is perfect - no errors.

              yesterday tried every pin, nothing happens.
              Only module clock & this DHT22 module are in my config.
              Remover & reinstalled module.
              No luck .
              I thought sensor might be defect but I get a reading of temp & hum via the Adafruit DHT test program.
              I’ve seen other people have same problem - no reading. I’m wondering if they have sorted out or just gave up on this module.

              C 1 Reply Last reply Oct 31, 2017, 12:03 AM Reply Quote 0
              • C Offline
                cowboysdude Module Developer @Johans
                last edited by Oct 31, 2017, 12:03 AM

                @Johans No sure… I don’t have a sensor or I’d be happy to test it out …

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