gistfile1.js

var m = require('mraa'); //IO Library
var express = require('express')
var app = express();
var exec = require('sync-exec');
app.use(express.static('static'));

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){
    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 + '/index.html');
});

app.get('/changeBlinkStatus', function(request, response){
    blink();
});

app.get('/pointer/:alpha',function(request, response){
    var alpha = request.params.alpha;
    exec('python v_servo.py ' + parseFloat(alpha / 400));
});


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(){
}

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