1 /*
2 * Author: Jon Trulson <jtrulson@ics.com>
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 <unistd.h>
26 #include <signal.h>
27 #include <iostream>
28 #include "at42qt1070.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
printButtons(upm::AT42QT1070 * touch)40 void printButtons(upm::AT42QT1070 *touch)
41 {
42 bool buttonPressed = false;
43 uint8_t buttons = touch->getButtons();
44
45 cout << "Buttons Pressed: ";
46 for (int i=0; i<7; i++)
47 {
48 if (buttons & (1 << i))
49 {
50 cout << i << " ";
51 buttonPressed = true;
52 }
53 }
54
55 if (!buttonPressed)
56 cout << "None";
57
58 cout << endl;
59
60 if (touch->isCalibrating())
61 cout << "Calibration is occurring." << endl;
62
63 if (touch->isOverflowed())
64 cout << "Overflow was detected." << endl;
65 }
66
main(int argc,char ** argv)67 int main(int argc, char **argv)
68 {
69 signal(SIGINT, sig_handler);
70
71 //! [Interesting]
72 // Instantiate an AT42QT1070 on I2C bus 0
73
74 upm::AT42QT1070 *touch = new upm::AT42QT1070(AT42QT1070_I2C_BUS,
75 AT42QT1070_DEFAULT_I2C_ADDR);
76
77 while (shouldRun)
78 {
79 touch->updateState();
80 printButtons(touch);
81 usleep(100000);
82 }
83
84 //! [Interesting]
85
86 cout << "Exiting..." << endl;
87
88 delete touch;
89 return 0;
90 }
91