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

    It provides a simple, but powerful way to create solutions that incorporate multiple, different hardware devices concurrently.

    Want to use Node.js for robots, drones, and IoT devices? You are in the right place.

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

    Want to use Golang to power your robots? Check out our sister project, Gobot.

    Build Status:

    Build Status Code Climate Code Climate

    Getting Started


    All you need to get started on a new robot is the cylon module:

    npm install cylon

    With the core module installed, now install the modules for whatever hardware support you need. For the Arduino + LED blink example, we'll need the firmata, gpio, and i2c modules:

    npm install cylon-firmata cylon-gpio cylon-i2c


    Arduino + LED

    The below example connects to an Arduino over a serial connection, and blinks an LED once per second.

    The example requires that the Arduino have the Firmata sketch installed; which can be obtained either through the Ardunio IDE or the gort arduino upload firmata command available in gort.

    var Cylon = require('cylon');
    // define the robot
    var robot = Cylon.robot({
      // change the port to the correct one for your Arduino
      connections: {
        arduino: { adaptor: 'firmata', port: '/dev/ttyACM0' }
      devices: {
        led: { driver: 'led', pin: 13 }
      work: function(my) {
        every((1).second(), my.led.toggle);
    // connect to the Arduino and start working

    Parrot ARDrone 2.0

    var Cylon = require('cylon');
      connections: {
        ardrone: { adaptor: 'ardrone', port: '' }
      devices: {
        drone: { driver: 'ardrone' }
      work: function(my) {
        after((15).seconds(), my.drone.stop);

    Cat Toy (Leap Motion + Digispark + Servos)

    var Cylon = require('cylon');
      connections: {
        digispark: { adaptor: 'digispark' },
        leapmotion: { adaptor: 'leapmotion' }
      devices: {
        servo1: { driver: 'servo', pin: 0, connection: 'digispark' },
        servo2: { driver: 'servo', pin: 1, connection: 'digispark' },
        leapmotion: { driver: 'leapmotion', connection: 'leapmotion' }
      work: function(my) {
        my.x = 90;
        my.z = 90;
        my.leapmotion.on('hand', function(hand) {
          my.x = hand.palmX.fromScale(-300, 300).toScale(30, 150);
          my.z = hand.palmZ.fromScale(-300, 300).toScale(30, 150);
        every(100, function() {
          console.log(my.servo1.currentAngle() + ", " + my.servo2.currentAngle());

    Multiple Spheros + HTTP API Plugin

    To use the HTTP API plugin, first install it's NPM module:

    $ npm install cylon-api-http

    Then it can be used in scripts:

    var Cylon = require('cylon');
    // tell the HTTP API plugin to listen for requests at https://localhost:4000
    Cylon.api("http", { port: 4000 });
    var bots = [
      { port: '/dev/rfcomm0', name: 'Thelma' },
      { port: '/dev/rfcomm1', name: 'Louise' }
    bots.forEach(function(bot) {
        connections: {
          sphero: { adaptor: "sphero", port: bot.port }
        devices: {
          sphero: { driver: "sphero" }
        work: function(my) {
          every((1).second(), function() {
            my.sphero.roll(60, Math.floor(Math.random() * 360));
    // start up all robots at once

    Fluent Syntax

    For those more familiar with jQuery, D3, or other fluent-style JavaScript libraries, Cylon.JS also supports a chainable syntax:

    var Cylon = require('cylon');
      .connection('arduino', { adaptor: 'firmata', port: '/dev/ttyACM0' })
      .device('led', { driver: 'led', pin: 13 })
      .on('ready', function(bot) {
        setInterval(function() {
        }, 1000);

    Hardware Support

    Cylon.js has an extensible syntax for connecting to multiple, different hardware devices. The following 36 platforms are currently supported:

    Platform Support
    ARDrone cylon-ardrone
    Arduino cylon-firmata
    Arduino YUN cylon-firmata
    AT&T M2X cylon-m2x
    Audio cylon-audio
    Beaglebone Black cylon-beaglebone
    Bebop cylon-bebop
    Bluetooth LE cylon-ble
    Crazyflie cylon-crazyflie
    Digispark cylon-digispark
    Electric Imp cylon-imp
    Intel Edison cylon-intel-iot
    Intel Galileo cylon-intel-iot
    Intel IoT Analytics cylon-intel-iot-analytics
    Joystick cylon-joystick
    Keyboard cylon-keyboard
    Leap Motion cylon-leapmotion
    MiP cylon-mip
    MQTT cylon-mqtt
    Nest cylon-nest
    Neurosky cylon-neurosky
    OpenCV cylon-opencv
    Phillips Hue cylon-hue
    Pebble cylon-pebble
    Pinoccio cylon-pinoccio
    PowerUp 3.0 cylon-powerup
    Rapiro cylon-rapiro
    Raspberry Pi cylon-raspi
    Salesforce cylon-force
    Skynet cylon-skynet
    Spark cylon-spark
    Speech cylon-speech
    Sphero cylon-sphero
    Sphero BLE cylon-sphero-ble
    Tessel cylon-tessel
    WICED Sense cylon-wiced-sense

    Our implementation of GPIO (General Purpose Input/Output) allows for a shared set of drivers supporting 14 different devices:

    • GPIO <=> Drivers
      • Analog Sensor
      • Button
      • Continuous Servo
      • Direct Pin
      • IR Range Sensor
      • LED
      • Makey Button (high-resistance button like the MakeyMakey)
      • Maxbotix Ultrasonic Range Finder
      • Motor
      • Relay
      • RGB LED
      • Servo
      • Temperature Sensor
      • TP401 Gas Sensor

    We also support 14 different I2C (Inter-Integrated Circuit) devices through a shared cylon-i2c module:

    • I2C <=> Drivers
      • BlinkM RGB LED
      • BMP180 Barometric Pressure + Temperature sensor
      • Direct I2C
      • HMC6352 Digital Compass
      • JHD1313M1 LCD with RGB Backlight
      • LCD
      • LIDAR-Lite
      • LSM9DS0G 9 Degrees of Freedom IMU
      • LSM9DS0XM 9 Degrees of Freedom IMU
      • MAG3110 3-Axis Digital Magnetometer
      • MPL115A2 Digital Barometer & Thermometer
      • MPU6050 Triple Axis Accelerometer and Gyro
      • PCA9544a 4-Channel I2C Mux
      • PCA9685 16-Channel 12-bit PWM/Servo Driver

    In addition to our officially supported platforms, we have the following 8 user contributed platforms:

    Platform Support
    APC UPS cylon-apcupsd
    iBeacon cylon-beacon
    Myo cylon-myo
    One-Wire cylon-one-wire
    Parrot Rolling Spider cylon-rolling-spider
    PCDuino cylon-pcduino
    Telegram cylon-telegram
    WeMo cylon-wemo

    We'll also have many more platforms and drivers coming soon, follow us on Twitter for updates.

    Browser & Mobile Support

    Cylon.js can be run directly in-browser, using the browserify NPM module. You can also run it from withing a Chrome connected app, or a PhoneGap mobile app.

    For more info on browser support, and for help with different configurations, you can find more info in our docs.

    API Plugins

    Cylon.js has support for different API plugins that can be used to interact with your robots remotely. At this time we have support for http/https, mqtt, and with more coming in the near future.

    To use an API plugin, install it alongside Cylon:

    $ npm install cylon-api-http cylon-api-socketio

    Then, all you need to do is call Cylon#api in your robot's script:

    var Cylon = require("cylon");
    // For http
    // Or for

    Then visit https://localhost:3000/ and you are ready to control your robots from a web browser!

    You can check out more information on the Cylon API in the docs here.


    Cylon uses the Gort Command Line Interface (CLI) so you can access important features right from the command line. We call it "RobotOps", aka "DevOps For Robotics". You can scan, connect, update device firmware, and more!

    Cylon also has its own CLI to generate new robots, adaptors, and drivers. You can check it out at


    We're busy adding documentation to our website, check it out at

    If you want to help with documentation, you can find the code for our website at on the


    For our contribution guidelines, please go to

    Release History

    For the release history, please go to


    Copyright (c) 2013-2016 The Hybrid Group. Licensed under the Apache 2.0 license.

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