MMM-Temperature-Humidity

Temperature and Humidity monitoring Module for MagicMirror² This module works for DHT11, DHT22 and AM2302 sensors.

Dependencies

• An installation of MagicMirror²
• npm
• rpi-dht-sensor

Installation

1. Clone this repo into ~/MagicMirror/modules directory.

2. Configure your ~/MagicMirror/config/config.js:

   {
       module: 'MMM-Temperature-Humidity',
       position: 'top_right',
       config: {
           ...
       }
   }
   

3. Run command npm install in ~/MagicMirror/modules/MMM-STT directory.

4. Run command sudo apt-get install rpi-dht-sensor.

5. sudo npm start in ~/MagicMirror.

Config Options

Option	Default	Description
refreshInterval	50000	Time in milli seconds before successive readings are taken.
temperaturePrefix	'Room temperature: '	Text to display as prefix of Temperature Reading
temperatureSuffix	'°C'	Text to display as suffix of Temperature Reading
humidityPrefix	'Humidity: '	Text to display as prefix of Humidity Reading
humiditySuffix	'%'	Text to display as suffix of Humidity Reading

For Developers

Principle is to poll the sensor every set time period for a reading and display the same to the mirror Note : This module uses the BCM2835 library that requires access to /open/mem. Because of this, you will typically run node with admin privileges. Also, these values are hard coded in node_helper.js sensorType and Pin Number-
var dht = new rpiDhtSensor.DHT11(2);

USAGE : var dht = new rpiDhtSensor.DHT22(pinNumber);//For DHT22 Type sensor var dht = new rpiDhtSensor.DHT11(pinNumber);