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 bean-io library, you will need to load a special version of Firmata onto your Bean device. Bean Firmata

We recommend you review Punchthrough's Getting Started guide before continuing.

Linux Instructions

Make sure that libbluetooth-dev and bluez libraries are installed before installing bean-io.

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();
});

Use ble-bean and Johnny-Five Api Together

var five = require("johnny-five");
var beanio = require("bean-io");
var boardIO = new beanio.Board({
//    name: "ZAPP" // optional: you can specify a localName otherwise defaults to nearby bean
});

var board = new five.Board({
  io: boardIO
});

board.on("ready", function() {

  var button = new five.Button(12); // button on pin 4

  button.on("down", function() {
    console.log("down");
    boardIO.connectedBean.setColor(new Buffer([0, 64, 64]), function(err){
      console.log('set color on', err);
    });
  });

  button.on("hold", function() {
    console.log("hold");
    boardIO.connectedBean.setColor(new Buffer([0, 0, 0]), function(err){
      console.log('set color off', err);
    });
  });

  button.on("up", function() {
    console.log("up");

  });
});

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|