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    A New Chapter for MagicMirror: The Community Takes the Lead
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    DHT22 Sensor

    Scheduled Pinned Locked Moved Unsolved Requests
    16 Posts 3 Posters 11.6k Views 6 Watching
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    • 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
            • BangeeB Offline
              Bangee Module Developer
              last edited by

              ah no, I’ve made a new installation on a brand new sd card.
              I moved my own moduls. the temperature module is a new one.

              But I’ve got the same with @paviro PIR moudle… :-(

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

                did you copy all the node_modules directories? if so this is propably the issue go to the module remove the directories and run npm install

                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

                  No, I’ve installed the node_modules with npm install.

                  https://github.com/paviro/MMM-PIR-Sensor/issues/9

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

                    then I have no clue sry

                    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 Bangee

                      I could fix this with the same workaround as the PIR Sensor.

                      now its runnig but electron start up everything and crashes after loading all data.

                      Any idea howto debug this? ther is nothing in my error logs…

                      /var/log/messages:

                      pi@raspberrypi:~/MagicMirror/modules/temperature $ tail -f /var/log/messages
Sep 14 13:16:05 raspberrypi kernel: [706942.834881] gpiomem-bcm2835 3f200000.gpiomem: gpiomem device opened.
Sep 14 13:16:32 raspberrypi kernel: [706969.575020] gpiomem-bcm2835 3f200000.gpiomem: gpiomem device opened.
Sep 14 13:17:00 raspberrypi kernel: [706997.192894] gpiomem-bcm2835 3f200000.gpiomem: gpiomem device opened.

                      thats all… :-(

                      node_helper.js:

                      'use strict';

/* Magic Mirror
 * Module: temperatur.js
 *
 * By Benjamin Angst 
 * MIT Licensed.
 */

const NodeHelper = require('node_helper');
const sensorLib = require('node-dht-sensor');

module.exports = NodeHelper.create({
		 start: function () {
			 console.log('Temperatur helper started ...');
		 },
		 
		 // Subclass socketNotificationReceived received.
		 socketNotificationReceived: function(notification, payload) {
		   const self = this;
		   if (notification === 'REQUEST') {
			 var sensor = {
			     initialize: function () {
			         return sensorLib.initialize(22, 27);
			     },
			     read: function () {
			         var readout = sensorLib.read();
			         console.log('Temperature: ' + readout.temperature.toFixed(2) + 'C, ' +
			             'humidity: ' + readout.humidity.toFixed(2) + '%');
			         setTimeout(function () {
			             sensor.read();
			         }, 2000);
			         // Send Temperatur
			         self.sendSocketNotification('DATA',{
							temp: readout.temperature.toFixed(2),
							humidity: readout.humidity.toFixed(2)
					 });
			     }
			 };
			
			 if (sensor.initialize()) {
			     sensor.read();
			 } else {
			     console.warn('Failed to initialize sensor');
			 }
		   }
		 }
 
});

                      temperature.js

                      /* Magic Mirror
 * Module: temperatur.js
 *
 * By Benjamin Angst 
 * MIT Licensed.
 */

Module.register("temperature",{
    // Default module config.
    defaults: {
        gpioPIN: 27,
        sensorType: 22, // Can be 22 or 11
        prependString: "Temperatur ",
    },

    // Override dom generator.
    getDom: function() {
        var wrapper = document.createElement("div");
        wrapper.innerHTML = "T: " + this.temperature + " °C / H: " + this.humidity + " %";
        return wrapper;
    },
    
    start: function() {
        this.temperature = 'fetching...';
        this.sendSocketNotification('REQUEST');
    },


    socketNotificationReceived: function(notification, payload) {
    if (notification === 'DATA') {
        this.temperature = payload.temp;
        this.humidity = payload.humidity;
        this.updateDom();
    }
    },
});
                      1 Reply Last reply Reply Quote 0
                      • S Offline
                        STEFF92
                        last edited by

                        Hi, i’m a totally beginner and the temperature/ humidity sensor is one of my first modules i want to install by myself. Here is the github link:

                        https://github.com/bernardpletikosa/MMM-DHT-Sensor

                        This were the first things i did:

                        pi@raspberrypi:~ $ cd ~/MagicMirror/modules
pi@raspberrypi:~/MagicMirror/modules $ git clone https://github.com/bernardpletikosa/MMM-DHT-Sensor.git
Klone nach 'MMM-DHT-Sensor'...
remote: Counting objects: 18, done.
remote: Total 18 (delta 0), reused 0 (delta 0), pack-reused 18
Entpacke Objekte: 100% (18/18), Fertig.
Prüfe Konnektivität... Fertig.
pi@raspberrypi:~/MagicMirror/modules $ cd MMM-DHT-Sensor
pi@raspberrypi:~/MagicMirror/modules/MMM-DHT-Sensor $ npm install

                        But then there came these lines:

                        npm WARN prefer global node-gyp@3.6.0 should be installed with -g

> rpi-dht-sensor@0.1.1 install /home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/rpi-dht-sensor
> node-gyp rebuild

make: Entering directory '/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/rpi-dht-sensor/build'
  CC(target) Release/obj.target/node_dht_sensor/src/bcm2835.o
  CXX(target) Release/obj.target/node_dht_sensor/src/node-dht-sensor.o
  SOLINK_MODULE(target) Release/obj.target/node_dht_sensor.node
  COPY Release/node_dht_sensor.node
make: Leaving directory '/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/rpi-dht-sensor/build'

> Magic-Mirror-Module-DHT-Sensor@1.0.0 postinstall /home/pi/MagicMirror/modules/MMM-DHT-Sensor
> electron-rebuild -e ../../node_modules/electron-prebuilt

An unhandled error occurred inside electron-rebuild
Unable to find electron-prebuilt's version number, either install it or specify an explicit version

Error: Unable to find electron-prebuilt's version number, either install it or specify an explicit version
    at _callee$ (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/electron-rebuild/lib/cli.js:74:17)
    at tryCatch (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/babel-runtime/node_modules/regenerator-runtime/runtime.js:63:40)
    at GeneratorFunctionPrototype.invoke [as _invoke] (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/babel-runtime/node_modules/regenerator-runtime/runtime.js:337:22)
    at GeneratorFunctionPrototype.prototype.(anonymous function) [as next] (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/babel-runtime/node_modules/regenerator-runtime/runtime.js:96:21)
    at GeneratorFunctionPrototype.tryCatcher (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/bluebird/js/release/util.js:16:23)
    at PromiseSpawn._promiseFulfilled (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/bluebird/js/release/generators.js:97:49)
    at /home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/bluebird/js/release/generators.js:201:15
    at Object. (/home/pi/MagicMirror/modules/MMM-DHT-Sensor/node_modules/electron-rebuild/lib/cli.js:197:4)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.runMain (module.js:604:10)
    at run (bootstrap_node.js:394:7)
    at startup (bootstrap_node.js:149:9)

npm WARN Magic-Mirror-Module-DHT-Sensor@1.0.0 No repository field.
npm WARN Magic-Mirror-Module-DHT-Sensor@1.0.0 No license field.
npm ERR! Linux 4.4.34-v7+
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"
npm ERR! node v6.10.0
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! Magic-Mirror-Module-DHT-Sensor@1.0.0 postinstall: `electron-rebuild -e ../../node_modules/electron-prebuilt`
npm ERR! Exit status 255
npm ERR! 
npm ERR! Failed at the Magic-Mirror-Module-DHT-Sensor@1.0.0 postinstall script 'electron-rebuild -e ../../node_modules/electron-prebuilt'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the Magic-Mirror-Module-DHT-Sensor package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     electron-rebuild -e ../../node_modules/electron-prebuilt
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs Magic-Mirror-Module-DHT-Sensor
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls Magic-Mirror-Module-DHT-Sensor
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /home/pi/MagicMirror/modules/MMM-DHT-Sensor/npm-debug.log

                        The way i connected the dht11 sensor is shown in the following picture:
                        alt text

                        I dont know what i did wrong, can anyone help me please?

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