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 "grovevdiv.h"
29 
30 using namespace std;
31 
32 bool shouldRun = true;
33 
sig_handler(int signo)34 void sig_handler(int signo)
35 {
36   if (signo == SIGINT)
37     shouldRun = false;
38 }
39 
40 
main()41 int main ()
42 {
43   signal(SIGINT, sig_handler);
44 
45 //! [Interesting]
46   // Instantiate a Grove Voltage Divider sensor on analog pin A0
47   upm::GroveVDiv* vDiv = new upm::GroveVDiv(0);
48 
49   // collect data and output measured voltage according to the setting
50   // of the scaling switch (3 or 10)
51   while (shouldRun)
52     {
53       unsigned int val = vDiv->value(100);
54       float gain3val = vDiv->computedValue(3, val);
55       float gain10val = vDiv->computedValue(10, val);
56       cout << "ADC value: " << val << " Gain 3: " << gain3val
57            << "v Gain 10: " << gain10val << "v" << endl;
58 
59       sleep(1);
60     }
61 //! [Interesting]
62 
63   cout << "Exiting..." << endl;
64 
65   delete vDiv;
66   return 0;
67 }
68