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

    DHT22 Sensor

    Scheduled Pinned Locked Moved Unsolved Requests
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    • S Offline
      stefanh
      last edited by

      Hi Experts :-)

      i’ve connected a temperature and humidity sensor DHT22 and would like to show these values.
      Is it possible to build some new module for this?

      Maybe it’s not necessary, i can readout the values via phyton script, but don’t know to integrate them…

      Greetings from Germany,
      stefanh

      X 1 Reply Last reply Reply Quote 0
      • X Offline
        xdker @stefanh
        last edited by

        Yes, I also have this requirement.

        1 Reply Last reply Reply Quote 0
        • Wilco89W Offline
          Wilco89
          last edited by

          https://github.com/momenso/node-dht-sensor?files=1

          Think it might be possible. Think it can Be useable.

          First hit in Google btw.

          Spit through code And learn? Or wait utill someone will have some sparetime.

          S 1 Reply Last reply Reply Quote 0
          • S Offline
            stefanh @Wilco89
            last edited by

            @Wilco89

            Thank your for great googeling :-)
            I will try to integrate it myself.

            1 Reply Last reply Reply Quote 0
            • BangeeB Offline
              Bangee Module Developer
              last edited by

              Where will I need to install node-dht-sensor using it with MagicMirror?

              a: ~/MagicMirror/ folder
              b: ~/MagicMirror/modules/ folder
              c: ~/MagicMirror/modules/MMM-Temperature/ folder

              using this command: npm install node-dht-sensor

              I would like to use it in node_helper.js inside a new module.

              Thanks!

              strawberry 3.141S 1 Reply Last reply Reply Quote 0
              • strawberry 3.141S Offline
                strawberry 3.141 Project Sponsor Module Developer @Bangee
                last edited by

                @Bangee go into the directory of your new module e.g. ~/MagicMirror/modules/MMM-Temperature/ and type npm init and follow the instructions, after that type npm install --save node-dht-sensor

                Please create a github issue if you need help, so I can keep track

                1 Reply Last reply Reply Quote 1
                • BangeeB Offline
                  Bangee Module Developer
                  last edited by

                  @strawberry-3-141 thank you! that worked for me.
                  But now i’ve got this error:

                  mm-0 App threw an error during load
                  mm-0 Error: Module version mismatch. Expected 49, got 48.
                  mm-0     at Error (native)
                  mm-0     at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:167:20)
                  mm-0     at Object.Module._extensions..node (module.js:568:18)
                  mm-0     at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:167:20)
                  mm-0     at Module.load (module.js:458:32)
                  mm-0     at tryModuleLoad (module.js:417:12)
                  mm-0     at Function.Module._load (module.js:409:3)
                  mm-0     at Module.require (module.js:468:17)
                  mm-0     at require (internal/module.js:20:19)
                  mm-0     at Object.<anonymous> (/home/pi/MagicMirror/modules/temperature/node_helper.js:2:17)
                  mm-0 Whoops! There was an uncaught exception...
                  mm-0 Error: Module version mismatch. Expected 49, got 48.
                  mm-0     at Error (native)
                  mm-0     at process.module.(anonymous function) [as dlopen] (ELECTRON_ASAR.js:167:20)
                  mm-0     at Object.Module._extensions..node (module.js:568:18)
                  mm-0     at Object.module.(anonymous function) [as .node] (ELECTRON_ASAR.js:167:20)
                  mm-0     at Module.load (module.js:458:32)
                  mm-0     at tryModuleLoad (module.js:417:12)
                  mm-0     at Function.Module._load (module.js:409:3)
                  mm-0     at Module.require (module.js:468:17)
                  mm-0     at require (internal/module.js:20:19)
                  mm-0     at Object.<anonymous> (/home/pi/MagicMirror/modules/temperature/node_helper.js:2:17)
                  mm-0 MagicMirror will not quit, but it might be a good idea to check why this happened. Maybe no internet connection?
                  mm-0 If you think this really is an issue, please open an issue on GitHub: https://github.com/MichMich/MagicMirror/issues
                  mm-0 Launching application.
                  

                  On line 2:

                  var sensorLib = require("node-dht-sensor");
                  

                  Node Version

                  pi@raspberrypi:~/MagicMirror/modules $ node -v
                  v6.3.1
                  
                  strawberry 3.141S 1 Reply Last reply Reply Quote 0
                  • strawberry 3.141S Offline
                    strawberry 3.141 Project Sponsor Module Developer @Bangee
                    last edited by

                    @Bangee depending on your other post about this problem in a different thread I assume you have a newer node version installed as you had on your old sd card, so maybe this will help you https://docs.npmjs.com/cli/rebuild

                    Please create a github issue if you need help, so I can keep track

                    1 Reply Last reply Reply Quote 0
                    • BangeeB Offline
                      Bangee Module Developer
                      last edited by

                      @strawberry-3-141 I’ve tried this before, but did not work for me. I’ve also made a reboot.

                      Will i need to have a downgrade?

                      strawberry 3.141S 1 Reply Last reply Reply Quote 0
                      • strawberry 3.141S Offline
                        strawberry 3.141 Project Sponsor Module Developer @Bangee
                        last edited by

                        @Bangee never had such an issue before, did a clean install instead of copying images on sdcard, is there a reason why you copied an old image?

                        Please create a github issue if you need help, so I can keep track

                        1 Reply Last reply Reply Quote 0
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