forge-viewer-mobile-sensor-1.js

var socket = io('http://mydummp.com');

//tick / untick to nable or diable gyro sensor monitor
 $('#EmmitGyroData').click(function (evt) {

        if($(this)[0].checked)
        {
            //Monitor Device Orientation
            if(window.DeviceOrientationEvent){
                window.addEventListener("deviceorientation", orientation, false); 

            }else{
                alert("DeviceOrientationEvent is not supported");
            }
        }
        else {
            //undelegate Device Orientation
            window.removeEventListener("deviceorientation",orientation);
            socket.disconnect();
            $('#gyrobig').text('Check [Emmit Gyro Data] to Start');
        }
    });

//emit data by socket.
function orientation(event){

    //just for demo, rephrase the data
    var x = parseInt(event.alpha); 
    var y =  parseInt(event.beta) ;
    var z =  parseInt(event.gamma) ;

    // display the value
    var thistext = x + ', '
        + y + ', '
        + z;
    $('#gyrobig').text(thistext);

    //avoid frequent emmit
     var tol = 2;
    if(Math.abs(r-lastr ) >tol|| Math.abs(g-lastg ) >tol || Math.abs(b-lastb ) >tol)
    {
        //element ID has not been used by this demo yet. reserve for future
        var IoTJson = {elementID:'183911',GyroData:{alpha:x,beta:y,gamma:z}};
        socket.emit('au_Gyro',JSON.stringify(IoTJson)); 
    }
}