1/*jslint node:true, vars:true, bitwise:true, unparam:true */
2/*jshint unused:true */
3/*
4* Author: Zion Orent <zorent@ics.com>
5* Copyright (c) 2015 Intel Corporation.
6*
7* Permission is hereby granted, free of charge, to any person obtaining
8* a copy of this software and associated documentation files (the
9* "Software"), to deal in the Software without restriction, including
10* without limitation the rights to use, copy, modify, merge, publish,
11* distribute, sublicense, and/or sell copies of the Software, and to
12* permit persons to whom the Software is furnished to do so, subject to
13* the following conditions:
14*
15* The above copyright notice and this permission notice shall be
16* included in all copies or substantial portions of the Software.
17*
18* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25*/
26
27var upmMQ9 = require("jsupm_gas");
28
29// Attach gas sensor to AIO0
30var myMQ9 = new upmMQ9.MQ9(0);
31
32var threshContext = new upmMQ9.thresholdContext;
33threshContext.averageReading = 0;
34threshContext.runningAverage = 0;
35threshContext.averagedOver = 2;
36
37// Infinite loop, ends when script is cancelled
38while(1)
39{
40    var buffer = new upmMQ9.uint16Array(128);
41    var len = myMQ9.getSampledWindow(2, 128, buffer);
42    if (len)
43    {
44        var thresh = myMQ9.findThreshold(threshContext, 30, buffer, len);
45        myMQ9.printGraph(threshContext, 5);
46        //if (thresh)
47        //    console.log("Threshold is " + thresh);
48    }
49}
50
51// Print message when exiting
52process.on('SIGINT', function()
53{
54	console.log("Exiting...");
55	process.exit(0);
56});
57