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    A New Chapter for MagicMirror: The Community Takes the Lead
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    MMM-DHT22 Humidity and Temperature Module

    Scheduled Pinned Locked Moved Utilities
    47 Posts 14 Posters 39.5k Views 14 Watching
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    • BangeeB Offline
      Bangee Module Developer
      last edited by

      @MxBln I did not check this.

      @Jopyth yes, it needs a sudo command inside the app.

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      • T Offline
        trividar
        last edited by

        Hi guys

        I have some problems with this module. I test it with two DHT22 and I have always the same strange thing. Please look my short clip: [Youtube](video: https://youtu.be/gvuq6A13fw8). Sometimes it shows quickly the exact Temp and sometimes strange values but most of the time it shows undefined. I try to made a skipt outside of the MM and in this picture (link) you can see , at the same time my skript shows the right value but in MM its undefined.
        Can someone test this module or help me to find the fault? THX a lot for any help!

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        • BangeeB Offline
          Bangee Module Developer
          last edited by

          What’s the result when you try this command directli in your terminal:

          go to cd MagicMirror/modules/MMM-DHT22/

          sudo ./dht_var 2
          

          Replace 2 with your sensor Pin

          I’ve tested this on two different Pi’s

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          • T Offline
            trividar
            last edited by

            @Bangee ok, now I’m confused ;o)
            Bild Text

            The first 5 lines I tried during my MM was working but nothing happend, i had to wait 2 minutes and it shows just a new comment line. After i stopped my MM it was working like a charm (last two lines). What I’m doing wrong?..

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            • BangeeB Offline
              Bangee Module Developer
              last edited by

              I don’t now atm :-)

              it looks like something is blocking the dht_var script when your MM is running

              Do you have error in your MM logs?

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              • T Offline
                trividar
                last edited by

                I just checkt it and I don’t have any errors …;o(

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                • BangeeB Offline
                  Bangee Module Developer
                  last edited by

                  I’ve tried this on an other pi and it works …

                  can you uncomment line 33 in node_helper.js to check if he tries to write something in to the logs?

                  	console.log("Log: " + temp + " - " + hum);
                  
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                  • T Offline
                    trividar
                    last edited by

                    THX @Bangee for your help. Now i got this error:

                    Error

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                    • yawnsY Offline
                      yawns Moderator
                      last edited by

                      Right. Please replace the word temp with arr[1] and hum with arr[0] in line 33 in node_helper.js

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                      • T Offline
                        trividar
                        last edited by trividar

                        Now my logs looks like this after I changed line 33:

                        Bild Text

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