littlebits-arduino

control LittleBits Arduino module with Firmata protocol. Extended arduino-firmata.

• https://github.com/shokai/node-littlebits-arduino
• https://npmjs.org/package/littlebits-arduino

Install

% npm install littlebits-arduino

Requirements

• LittleBits Arduino module
• Install Standard Firmata
  • Arduino IDE -> [File] -> [Examples] -> [Firmata] -> [StandardFirmata]
  • set board-type Arduino Leonardo

Usage

Setup

Connect, Read and Write

var LittleBitsArduino = require('littlebits-arduino');
 
var arduino = new LittleBitsArduino();
arduino.connect(); // use default Arduino
// arduino.connect('/dev/tty.usb-device-name');
 
arduino.on('connect', function(){
  setInterval(function(){
    var d0 = arduino.d0; // true or false
    var a0 = arduino.a0; // 0~1023 analog input
    var a1 = arduino.a1; // 0~1023 analog input
 
    console.log([d0, a0, a1]);
 
    arduino.d1 = d0;   // digital output
    arduino.d5 = a0/4; // 0~255 analog output
    arduino.d9 = a1/4; // 0~255 analog output
  }, 100);
});

Reset

arduino.reset(callback);

Close

arduino.close(callback);

Also digitalRead, analogRead, sysex and on "analogChange", on "digitalChange" are available.

Test

% npm install
% npm test