gistfile1.txt

var m = require('mraa'); //IO Library
var http = require('http');
var express = require('express');
var app = express();
var server = http.createServer(app);
app.use(express.static('static'));


var io = require('socket.io')(server); //Socket.IO Library

var blinkInterval = 1000; //set default blink interval to 1000 milliseconds (1 second)
var blinkStatus = false;
var ledState = 1; //set default LED state
var point_Alpha = 0 ;

var myLed = new m.Gpio(17); //LED hooked up to digital pin 13

myLed.dir(m.DIR_OUT); //set the gpio direction to output

///////////////////////////////////////////////////
///////// Express Server //////////////////////////
///////////////////////////////////////////////////


app.get('/play.html',function(request, response){ //...............URL... "/" ...HTTP GET......
        response.sendFile(__dirname + '/play.html');
});


app.get('/intro.html',function(request,response){
        response.sendFile(__dirname + '/intro.html');
});
app.get('/',function(request,response){

//      response.sendFile(__dirname + '/testGet.html');
        response.sendFile(__dirname + '/index.html');
});

server.listen(8080,'0.0.0.0',function(){
    console.log('HTTP............ http://127.0.0.1:8080/ .........');
});



///////////////////////////////////////////////////
////////// Socket.io Streaming ////////////////////
///////////////////////////////////////////////////
var exec = require('sync-exec')

io.on('connection', function(socket){
    socket.on('changeBlinkStatus',function(data){
	console.log("Status:" +  blinkStatus );
	blink();    	
    });
    socket.on('pointer',function(data){
	point_Alpha = data;
	//console.log(parseFloat( point_Alpha)/100);
	exec('python v_servo.py '+ parseFloat(point_Alpha/400) , 1000)
    });
    socket.on('error', function(data) {
    	console.log('error', data);
    });
});                                                   


///////////////////////////////////////////////////
////// GPIO Controller ////////////////////////////
///////////////////////////////////////////////////

//blink(); //start the blink function

function blink(){                                                                               
	blinkStatus = !blinkStatus;
//    ledState = !ledState;
    myLed.write(blinkStatus ? 1: 0); //write the LED state
 //   ledState = 1 - ledState; //toggle LED state
//  setTimeout(blink,blinkInterval); //recursively toggle pin state with timeout set to blink interval
} 

function servo(){
}