bean-io

Bean-io

Bean-io is a Firmata-compatibility IO class for writing node programs that interact with LightBlue Bean devices. Bean-io was built at IcedDev

Installation

npm install bean-io

Getting Started

In order to use the spark-io library, you will need to load Jacob Rosenthal's StandardFirmata.ino fork firmware onto your Bean device. We recommend you review Punchthrough's Getting Started guide before continuing.

Blink an Led

The "Hello World" of microcontroller programming:

var beanio = require("bean-io");
var board = new beanio.Board({
  timeout: 30000 //optional - defaults to 30 seconds
  // uuid: 'myUuid' //optional - will use first bean found
});

board.on("ready", function() {
  console.log("CONNECTED");
  this.pinMode(13, this.MODES.OUTPUT);

  var byte = 0;

  // This will "blink" the on board led
  setInterval(function() {
    this.digitalWrite(13, (byte ^= 1));
  }.bind(this), 500);
});

Johnny-Five IO Plugin

Bean-IO can be used as an IO Plugin for Johnny-Five:

var five = require("johnny-five");
var beanio = require("bean-io");
var board = new five.Board({
  io: new beanio.Board()
});

board.on("ready", function() {
  var led = new five.Led({pin: 13});
  led.blink();
});

API

Bean-IO subclasses firmata.js and provides the same API.

Pin Mappings

Bean to Arduino UNO

Bean Port	Arduino Pin	Type
A0	18	Analog/Digital
A1	19	AnalogDigital
0	6	Digital — Unavailable right now from firmata
1	9	Digital — Unavailable right now from firmata
2	10	Digital
3	11	Digital
4	12	Digital
5	13	Digital