index.js

var Service, Characteristic;
var xbee = require('./xbee');

module.exports = function(homebridge) {
  Service = homebridge.hap.Service;
  Characteristic = homebridge.hap.Characteristic;
  homebridge.registerPlatform("homebridge-xbee", "XBee", XBeePlatform);
}

function XBeePlatform(log, config) {
  // If parameters are not sent, just return the xbee object for interfacing
  if(log === undefined && config === undefined) {
    return xbee;
  }
  
  // Normal Platform initialization
  this.log = log;
  this.devices = config["devices"];
  
  log("Starting discovery...");
  xbee.init(log, config.port , config.baudrate, config.api_mode, config.timeout || 5000);
}

XBeePlatform.prototype = {
  accessories: function(callback) {
    var foundAccessories = [];
    var count = this.devices.length;
    
    for(index=0; index< count; ++index){
		  var accessory  = new PushButtonAccessory(this.log, this.devices[index]);
		  foundAccessories.push(accessory);
	  }
	
	  callback(foundAccessories);
  }
}

function PushButtonAccessory(log, config) {
  this.log = log;
  this.name = config["name"];
  this.buttonName = config["button_name"] || this.name; // fallback to "name" if you didn't specify an exact "button_name"
  this.bitaddress = config["64bitaddress"];
  this.bitnetwork = config["16bitnetwork"];
  this.binaryState = 0; // switch state, default is OFF
  this.log("Starting a homebridge-xbee device with name '" + this.buttonName + "'...");
  this.pushButtonService;
  this.timeout = 2; // Timeout in seconds
}

PushButtonAccessory.prototype.getPowerOn = function(callback) {
  var powerOn = this.binaryState > 0;
  this.log("Power state for the '%s' is %s", this.buttonName, this.binaryState);
  callback(null, powerOn);
}

PushButtonAccessory.prototype.setPowerOn = function(powerOn, callback) {
  var self = this;
  this.binaryState = powerOn ? 1 : 0;
  this.log("Set power state on the '%s' to %s", this.buttonName, this.binaryState);
  callback(null);

  if(powerOn) {
    xbee.trigger(this.bitaddress, this.bitnetwork);
    setTimeout(function() {
      self.log("BEEP! BOOP!");
      self.pushButtonService.getCharacteristic(Characteristic.On).setValue(0);
    }, this.timeout * 1000);
  }
}

PushButtonAccessory.prototype.getServices = function() {
    this.pushButtonService = new Service.Switch(this.name);

    this.pushButtonService
      .getCharacteristic(Characteristic.On)
      .on('get', this.getPowerOn.bind(this))
      .on('set', this.setPowerOn.bind(this));

    return [this.pushButtonService];
}