ev3dev-NodeJS

ev3dev-NodeJS is a nodejs module that lets you program your Lego EV3 brick with JavaScript. It uses a custom kernel called ev3dev, so it won't work with the out-of-the-box Lego kernel.

Although our goal is to support all of the functions of the EV3, we currently have implimented support for:

• Motors
  • Run forever
  • Run for time
  • Run servo/position
• LEDs

We also have experimental support for some sensors in the sensors branch.

Using motors

//Require the module
var ev3 = require('ev3dev');
//Create the motor on port A
var motorA = new ev3.Motor(ev3.MotorPort.A);
//Run the motor at 60% power for five seconds, and then hold it in place
motorA.startMotor({ 
    targetSpeed: 60,
    time: 5000,
    stopMode: 'hold'
});

Using LEDs

//Require the module
var ev3 = require('ev3dev');
//Initialize both LEDs
var leftLED = new ev3.LED(ev3.ledPosition.left);
var rightLED = new ev3.LED(ev3.ledPosition.right);
//Set their color
leftLED.color = ev3.ledColorSetting.green;
rightLED.color = ev3.ledColorSetting.red;

Simple, right? Learn more about the Motor and LED APIs on the Wiki.