lsm303

Node.js LSM303 Accelerometer and Magnetometer Module

This module allows you to integrate LSM303 in your Node.js Project

Beaglebone Black Setup

Connect the SCL and SDA of LSM303 on P9_19 and P9_20 respectively. Check whether the device is connected properly using i2cdetect ( #i2cdetect -r 1 ).

This module takes 0x19 and 0x1e as the default addresses for Accelerometer and Magnetometer respectively. This can be changed by passing the address during device object creation. Similarly the device path can also be changed.

Installation

npm install lsm303

Usage

Checkout example/example1.js for basic usage Magnetometer calibration application also available in examples

var lsm303 = require('lsm303');

var ls  = new lsm303();

var accel = ls.accelerometer();
var mag = ls.magnetometer();

accel.readAxes(function(err,axes){
    if(err){
        console.log("Error reading Accelerometer Axes : " + err);
    }
    if (axes) {
        console.log(axes);
    }
});

mag.readAxes(function(err,axes){
    if(err){
        console.log("Error reading Magnetometer Axes : " + err);
    }
    if (axes) {
        console.log(axes);
    }
});

// Non-tilt-compensated readHeading function
mag.readHeading(function(err, heading){
        if(err){
                console.log("Error reading Magnetometer Heading : " + err);
      }   
      if (heading) {
        headingTemp = heading;
      }   
    });

mag.readTemp(function(err,temp){
    if(err){
        console.log("Error reading Temperature : " + err);
    }
    if (temp) {
        console.log(temp);
    }
});