DHT22 Sensor

strawberry 3.141 · Aug 5, 2016, 12:44 PM

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

Bangee · Aug 5, 2016, 12:55 PM

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

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

strawberry 3.141 · Aug 5, 2016, 1:15 PM

then I have no clue sry

Bangee · Sep 14, 2016, 12:07 PM

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();
    }
    },
});

STEFF92 · Mar 22, 2017, 6:10 PM

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:

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