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 <signal.h>
27 #include <iostream>
28 #include "adc121c021.h"
29
30 using namespace std;
31
32 int shouldRun = true;
33
sig_handler(int signo)34 void sig_handler(int signo)
35 {
36 if (signo == SIGINT)
37 shouldRun = false;
38 }
39
main(int argc,char ** argv)40 int main(int argc, char **argv)
41 {
42 signal(SIGINT, sig_handler);
43
44 //! [Interesting]
45 // Instantiate an ADC121C021 on I2C bus 0
46
47 upm::ADC121C021 *adc = new upm::ADC121C021(ADC121C021_I2C_BUS,
48 ADC121C021_DEFAULT_I2C_ADDR);
49
50 // An analog sensor, such as a Grove light sensor,
51 // must be attached to the adc
52 // Prints the value and corresponding voltage every 50 milliseconds
53 while (shouldRun)
54 {
55 uint16_t val = adc->value();
56 cout << "ADC value: " << val << " Volts = "
57 << adc->valueToVolts(val) << endl;
58 usleep(50000);
59 }
60 //! [Interesting]
61
62 cout << "Exiting..." << endl;
63
64 delete adc;
65 return 0;
66 }
67