1 /*
2 * Author: Marc Graham <marc@m2ag.net>
3 * Copyright (c) 2015 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 <iostream>
26 #include <unistd.h>
27 #include <signal.h>
28 #include "micsv89.h"
29
30 /*
31 * An example for using the MICSV89 sensor library.
32 * The MICSV89 comes in 4 variants, PWM and I2c
33 * in 3.3 volts and 5 volts. This library only implements
34 * the I2c version of the device.
35 *
36 * Device output is not valid until a warm up of 15 minutes
37 * of operation.
38 *
39 * Additional linker flags: -lupm-micsv89
40 */
41
42 using namespace std;
43
44 volatile int running = 1;
45
46 void
sig_handler(int signo)47 sig_handler(int signo)
48 {
49 if (signo == SIGINT) {
50 cout << "Exiting program." << endl;
51 running = 0;
52 }
53 }
54
main()55 int main()
56 {
57 signal(SIGINT, sig_handler);
58
59 //! [Interesting]
60 upm::MICSV89 *sensor = new upm::MICSV89(6);
61
62 while(running)
63 {
64 sensor->update();
65 while(!sensor->valid());
66 cout << "co2: " << sensor->co2equ() << endl;
67 cout << "short: " << sensor->vocshort() << endl;
68 cout << "tvoc: " << sensor->tvoc() << endl;
69 cout << "resistor: " << sensor->resistor() << endl;
70 cout << "****************************" << endl;
71 sleep(5);
72 }
73
74 delete sensor;
75 //! [Interesting]
76
77 return MRAA_SUCCESS;
78 }
79