sensortoy/www/js/device/CC2650/cc2650_luxometer.js

/**
 *
 * User: Martin Donnelly
 * Date: 2016-05-20
 * Time: 10:13
 *
 */
/* global CAPABILITY, inheritsFrom */
/* global ble  */
/* jshint browser: true , devel: true*/

var CC2650_LUX = function(deviceId) {
  'use strict';
  this.name = 'Luxometer';
  this.deviceID = deviceId;
  this.capabilityID = 'F000AA70-0451-4000-B000-000000000000';
  this.serviceDef = {
    service: 'F000AA70-0451-4000-B000-000000000000',
    data: 'F000AA71-0451-4000-B000-000000000000',
    notification: 'F0002902-0451-4000-B000-000000000000',
    configuration: 'F000AA72-0451-4000-B000-000000000000',
    period: 'F000AA73-0451-4000-B000-000000000000'

  };

  this.$result = {temp: null, pressure: null};

  this.startService = function() {
    'use strict';
    if (this.deviceID !== null) {

      console.log('Starting CC2650 Luxometer Service on ', this.deviceID);
      console.log(this.serviceDef);
      this.insertFrame();

      ble.startNotification(this.deviceID,
        this.serviceDef.service,
        this.serviceDef.data,
        this.onLuxData.bind(this),
        this.onError);

      //Turn on luxometer
      var luxConfig = new Uint8Array(1);
      luxConfig[0] = 0x01;
      ble.write(this.deviceID,
        this.serviceDef.service,
        this.serviceDef.configuration,
        luxConfig.buffer,
        function() { console.log('Started luxometer.'); },
        this.onError);

    }

  };
  
  this.onLuxData = function(data) {

    var m, e, lux;
    console.log(data);

    var raw = new Uint16Array(data);

    m = raw & 0x0FFF;
    e = (raw & 0xF000) >> 12;

    lux = m * (0.01 * Math.pow(2.0, e));

    this.state = [lux, 'lux'].join(' ');

    this.$result.text(this.state);

    console.log('Luxometer:', this.state);
  };

  this.insertFrame = function() {

    var self = this;
    console.log('Overloading...');
    // Call the parent displayForm first...
    this.superClass_.insertFrame.call(self);

    var lux = this.frameID + '-l';

    var row = $('<div />', {class: 'mui-row'});

    $('<div />',
      {class: 'mui-col-xs-4 mui--text-accent', text: 'Luminosity:'}).appendTo(
      row);

    $('<div />',
      {class: 'mui-col-xs-8 mui--text-white', id: lux}).appendTo(row);

    this.$id.append(row);
    this.$result = $('#' + lux);

  };

};

inheritsFrom(CC2650_LUX, CAPABILITY);