Cylon.js drivers for i2c devices

Cylon.js For i2c

Cylon.js ( is a JavaScript framework for robotics, physical computing, and the Internet of Things (IoT).

This module provides drivers for i2c devices (²C). You would not normally use this module directly, instead it is used by Cylon.js adaptors that have i2c support.

NOTE: This LCD driver only supports PCF8574 based displays at the moment, we are working on adding support for other LCDs.

Want to use Ruby on robots? Check out our sister project Artoo (

Want to use the Go programming language to power your robots? Check out our sister project Gobot (

Install the module with: npm install cylon cylon-i2c

var Cylon = require('cylon');
// Initialize the robot 
  connections: {
    arduino: { adaptor: 'firmata', port: '/dev/ttyACM0' }
  devices: {
    blinkm: { driver: 'blinkm'}
  workfunction(my) {
    var lit = false;
    every((1).seconds(), function() {
      if (lit === true) {
        lit = false;
        my.blinkm.rgb(0xaa, 0, 0);
      } else {
        lit = true;
        my.blinkm.rgb(0, 0, 0);

Cylon.js has a extensible system for connecting to hardware devices. The following i2c devices are currently supported:

  • BlinkM RGB LED
  • BMP180 Barometric Pressure + Temperature sensor
  • HMC6352 Digital Compass
  • LCD
  • LIDAR-Lite
  • LSM9DS0G 9 Degrees of Freedom IMU
  • LSM9DS0XM 9 Degrees of Freedom IMU
  • MPL115A2 Digital Barometer & Thermometer
  • MPU6050 Triple Axis Accelerometer and Gyro
  • PCA9685 16-Channel 12-bit PWM/Servo Driver

More drivers are coming soon...

We're busy adding documentation to our web site at please check there as we continue to work on Cylon.js

Thank you!

For our contribution guidelines, please go to .

For the release history, please go to .

Copyright (c) 2013-2015 The Hybrid Group. Licensed under the Apache 2.0 license.