Play a notification sound whenever an Android IP Webcam motion sensor exceeds the threshold.

notify.js

// Execute in developer console on /sensors.html.
var limit = document.getElementById('motion_limit').value;
var audio = new Audio('http://gabenewell.org/audio/gabenewellwatchingyou.mp3');

(function() {
  var origOpen = XMLHttpRequest.prototype.open;
  XMLHttpRequest.prototype.open = function() {
    this.addEventListener('load', function() {
      var response = JSON.parse(this.responseText);
      for (var i = 0; i < response['motion']['data'].length; i++) {
        if (response['motion']['data'][i][1][0] >= limit) {
          console.log('motion over threshold');
          audio.play();
        }
      }
    });
    origOpen.apply(this, arguments);
  };
})();