Smart Venetian Blinds

var smartliving = require('smartliving');
var mraa = require('mraa');
var Uln200xa_lib = require('jsupm_uln200xa');
var LEDBar = require("jsupm_my9221");

var myUln200xa_obj = new Uln200xa_lib.ULN200XA(4096, 8, 9, 10, 11);
var myLEDBar = new LEDBar.MY9221(2, 3);

var analogPin0 = new mraa.Aio(0); //setup access analog input Analog pin #0 (A0)  LIGHT SENSOR
var analogPin1 = new mraa.Aio(1); //setup access analog input Analog pin #1 (A1)  GAS SENSOR
var analogValuePin0;
var analogValuePin1;

var v_Pin0 = [500, 500, 500, 500];
var darkness_avg = 0;
var i = 0;
var j = 0;
var state = false; //Boolean to hold the state of Led

myUln200xa_obj.goForward = function()
{
    myUln200xa_obj.setSpeed(2);
    myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CW);
    myUln200xa_obj.stepperSteps(768);
};

myUln200xa_obj.reverseDirection = function()
{
	myUln200xa_obj.setDirection(Uln200xa_lib.ULN200XA.DIR_CCW);
	myUln200xa_obj.stepperSteps(768);
};

myUln200xa_obj.stop = function() //Must be called, not included here !!!
{
	myUln200xa_obj.release();
};

myUln200xa_obj.quit = function() //Must be called, not included here !!!
{
	myUln200xa_obj = null;
	Uln200xa_lib.cleanUp();
	Uln200xa_lib = null;
	console.log("Exiting");
	process.exit(0);
};

smartliving.credentials = require('./credentials');

// Set up the Light Sensor
smartliving.addAsset(
	"0",
	"Light sensor",
	"Controls the lights of the house, using a light sensor",
	"int",
	function(){
    	console.log("Light sensor enrolled")
	}
);

// Set up the darkness indicator
smartliving.addAsset(
	"1",
	"Darkness indicator",
	"Send darkness indication",
	"int",
	function(){
    	console.log("Darkness indicator enrolled")
	}
);

// Set up the LED Actuators
smartliving.addAsset(
	"2",
	"LED Actuator",
	"LED Actuator",
	"bool",
	function(){
    	console.log("LED Actuator enrolled")
	},
	function() { 		
        if (state) {
            myUln200xa_obj.goForward();
            myLEDBar.setBarLevel(0, true);
        }
        else {
            myUln200xa_obj.reverseDirection();
            myLEDBar.setBarLevel(8, true);
        }
        state = !state; //invert the ledState
	}
);

smartliving.connect();

setInterval(function(){
    analogValuePin1 = analogPin1.read();
    
    console.log('Gas Level : ' + analogValuePin1);
    
    if (analogValuePin1 > 200)
    {
        setTimeout(function() 
        {
             myLEDBar.setBarLevel(0, true);
        }, 1000);
		
		myLEDBar.setBarLevel(8, true);
    }
    else
    {        
        analogValuePin0 = analogPin0.read();

        v_Pin0[i] = analogValuePin0;
        darkness_avg = 0;
        for (j = 0; j < 4; j++) {
            darkness_avg += v_Pin0[j];
        } 
        darkness_avg /= 4;

        smartliving.send(analogValuePin0, "0")
        smartliving.send(darkness_avg, "1")

        i = i + 1;
        if (i > 3){
            i = 0;
        }
    }	
}, 3000);