1/*
2 * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25#include <unistd.h>
26#include <iostream>
27#include "mq5.h"
28#include <signal.h>
29#include <stdlib.h>
30#include <sys/time.h>
31
32int is_running = 0;
33uint16_t buffer [128];
34upm::MQ5 *sensor = NULL;
35
36void
37sig_handler(int signo)
38{
39    printf("got signal\n");
40    if (signo == SIGINT) {
41        is_running = 1;
42    }
43}
44
45//! [Interesting]
46int
47main(int argc, char **argv)
48{
49    sensor = new upm::MQ5(0);
50    signal(SIGINT, sig_handler);
51
52    thresholdContext ctx;
53    ctx.averageReading = 0;
54    ctx.runningAverage = 0;
55    ctx.averagedOver   = 2;
56
57    while (!is_running) {
58        int len = sensor->getSampledWindow (2, 128, buffer);
59        if (len) {
60            int thresh = sensor->findThreshold (&ctx, 30, buffer, len);
61            sensor->printGraph(&ctx, 7);
62            if (thresh) {
63                // do something ....
64            }
65        }
66    }
67
68    std::cout << "exiting application" << std::endl;
69
70    delete sensor;
71
72    return 0;
73}
74//! [Interesting]
75