node-w1bus

Simple node module to manage all sensor on 1-Wire bus

Installation

npm install node-w1bus

sudo modprobe wire
sudo modprobe w1-gpio
sudo modprobe w1-therm

Usage

Sensor's Configuration schema:

var config = {
    sensor_id: {
        description: "desc",
        measures: {
            measure_type: {
                description: "Measure description",
                pattern: /value=(\d+)/,
                unit: "°C",
                scale: 0.001
            }
        }
    }
 }

How to instanciate a 1 wire bus object:

var bus = w1bus.create();

How to get 1 wire bus configuration with all sensors and measures available:

var config = bus.getConfig();

How to get all sensors connected on this bus:

bus.listAllSensors()
.then(function(data){
    console.log(data);
});

How to check if a sensor if connected:

bus.isConnected(data.ids[0])
.then(function(data){
    console.log(data.connected);
});

How to get a sensor measure:

var mySensor = "28-00000000";
var opt_measureType = "temperature";
bus.getValueFrom(mySensor, opt_measureType)
.then(function(res){
    console.log(res);
});

Compatibilities

1 Wire sensors compatibilities (Description translated from http://fr.wikipedia.org/wiki/1-Wire):

DS18S20 - Thermometer
DS1822 - Digital thermometer
DS18B20 - Temperature sensor with adjustable resolution

Tests

In order to perform unit test without any sensors/probes, run:

make simu

If you want to perform unit test with real sensors/probes conencted, run:

make live

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code.

Release History

• 0.1.2 Add sensors configuration + isConnected method
• 0.1.1 Bug fix
• 0.1.0 Initial release