Cylon adaptor for the Tessel
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Cylon.js For Tessel

Cylon.js ( is a JavaScript framework for robotics and physical computing using Node.js

This repository contains the Cylon adaptor for the Tessel JavaScript microcontroller.

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 (

Build Status Code Climate Test Coverage

For more information about Cylon, check out our repo at

How to Install

Follow the installation instructions detailed here

We've provided a repo containing an example cylon-tessel project.

$ git clone my-tessel-project
$ cd my-tessel-project
$ npm install
$ tessel run blink.js

If the blue light starts to blink, then you're all set!

How to Use


This small program lets you toggle an LED on and off.

var Cylon = require('cylon');

  connections: {
    tessel: { adaptor: 'tessel' }

  devices: {
    led: { driver: 'led', pin: 1 }

  work: function(my) {
    every((1).seconds(), function() { my.led.toggle() });


This small program shows how to use the Tessel Climate module.

var Cylon = require('cylon');

  connections: {
    tessel: { adaptor: 'tessel', port: 'A' }

  devices: {
    climate: { driver: 'climate-si7005' }

  work: function(my) {
    my.climate.on('error', function (err) {

    every((1).seconds(), function() {
      my.climate.readHumidity(function (err, humid) {
        console.log('Humidity:', humid.toFixed(4) + '%RH');
      my.climate.readTemperature('f', function (err, temp) {
        console.log('Degrees:', temp.toFixed(4) + 'F');

How to Connect

As mentioned in the How To Install section, connecting to the Tessel is easy. You just need to follow the provided instructions on the Tessel site.

If you've already done this, your Tessel should already be connected and ready to run Cylon.JS code.

Tessel Module Support

The Tessel has a variety of custom hardware modules specifically for use with Tessel. Cylon.js has support for the following Tessel modules:

GPIO & I2C Support

In addition to the custom Tessel modules, you can also use the standard Cylon.js GPIO and I2C drivers:

  • GPIO <=> Drivers

    • Analog Sensor
    • Button
    • IR Rangefinder
    • LED
    • MakeyButton
    • Maxbotix Ultrasonic Range Finder
  • I2C <=> Drivers

    • BlinkM
    • BMP180
    • HMC6352 Digital Compass
    • LCD
    • MPL115A2 Barometer/Thermometer
    • MPU6050


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

Release History

For the release history, please go to


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