Raspberry Pi + Nodejs + PIR module + webcam + Philips Hue

index.js

var hue = require("node-hue-api");
var HueApi = require("node-hue-api").HueApi;
var gpio = require("gpio");
var nodemailer = require("nodemailer");
 
/* ************* */
/*      CONF     */
/* ************* */
 
var usernameHue = ''; // md5sum
 
var mailConf = {service: 'Gmail', user: '', pass: ''};
 
var mailOptions = {
    from: "", // sender address
    to: "", // list of receivers
    subject: "", // Subject line
    text: "", // text body. Can  be replaced by html: string
    attachments: [{fileName: 'capture.jpg', filePath: 'capture.jpg'}] // Attach capture
}
 
var gpioPinNumber = 11;
 
// Hue
var lightState = hue.lightState;
var api;
var status = false;
var lightOff;
 
// Nodemailer
var smtpTransport = nodemailer.createTransport("SMTP",{
    service: mailConf,
    auth: {
        user: mailConf.user,
        pass: mailConf.pass
    }
});
 
// fswebcam
var exec = require('child_process').exec;
 
var initExtinction = function() {
	lightOff = setTimeout(function() {
		var state = lightState.create().off();
		console.log('off');
		api.setLightState(1, state);
		status = false;
	}, 180000);
}
 
function resetExtinction() {
	console.log('reset timer');
	clearTimeout(lightOff);
	initExtinction();
}
 
function sendmail() {
	smtpTransport.sendMail(mailOptions, function(error, response){
	    if(error){
		console.log(error);
	    }else{
		console.log("Mail sent ");
	    }
	});
}
 
function takeScreenshot() {
	setTimeout(function() {
		exec('fswebcam capture.jpg', function(error, stdout, stderr) {
			console.log('catpure ok');
			sendmail();
		});
	}, 1000);
}
 
// Let's go 
hue.searchForBridges(2000).then(function(result) {
	var bridge = result[0];
	if (bridge.id) {
		console.log("Bridge found");
		api = new HueApi(bridge.ipaddress, usernameHue);
 
		// Init gpio
		var gpioPin = gpio.export(gpioPinNumber, {
		   direction: "in",
		   ready: function() {
		   }
		});
 
		gpioPin.on("change", function(val) {
			if (val == 1) {
				console.log('detected');
				var hours = new Date().getHours();
				if ((hours > 21 || hours < 7)) {	
					if (!status) {
						var state = lightState.create().on().white(500, 60);
						api.setLightState(1, state)
						    .then(function() {status = true;takeScreenshot();initExtinction();console.log('on')}).done();
					} else {
						resetExtinction();
						takeScreenshot();
					}
				}
			} else {
				console.log("PIR module sent off signal.");
			}
		});
	}
	
}).done();