1 /*
2 * Author: Jon Trulson <jtrulson@ics.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 <signal.h>
28 #include "guvas12d.h"
29
30 using namespace std;
31
32 bool shouldRun = true;
33
34 // analog voltage, usually 3.3 or 5.0
35 #define GUVAS12D_AREF 5.0
36 #define SAMPLES_PER_QUERY 1024
37
sig_handler(int signo)38 void sig_handler(int signo)
39 {
40 if (signo == SIGINT)
41 shouldRun = false;
42 }
43
main()44 int main()
45 {
46 signal(SIGINT, sig_handler);
47
48 //! [Interesting]
49 // The was tested with the Grove UV Sensor module.
50 // It has a sensing range from between 200-400nm. It's strongest
51 // response is around 320-360nm.
52
53 // Instantiate a GUVAS12D on analog pin A0
54 upm::GUVAS12D *volts = new upm::GUVAS12D(0);
55
56 // The higher the voltage the more intense the UV radiation.
57
58 while (shouldRun)
59 {
60 cout << "AREF: " << GUVAS12D_AREF
61 << ", Voltage value (higher means more UV): "
62 << volts->value(GUVAS12D_AREF, SAMPLES_PER_QUERY) << endl;
63
64 sleep(1);
65 }
66 //! [Interesting]
67
68 cout << "Exiting" << endl;
69
70 delete volts;
71 return 0;
72 }
73