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 "grovemoisture.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
40
main()41 int main ()
42 {
43 signal(SIGINT, sig_handler);
44
45 //! [Interesting]
46 // Instantiate a Grove Moisture sensor on analog pin A0
47 upm::GroveMoisture* moisture = new upm::GroveMoisture(0);
48
49 // Values (approximate):
50 // 0-300, sensor in air or dry soil
51 // 300-600, sensor in humid soil
52 // 600+, sensor in wet soil or submerged in water.
53 // Read the value every second and print the corresponding moisture level
54 while (shouldRun)
55 {
56 int val = moisture->value();
57 cout << "Moisture value: " << val << ", ";
58 if (val >= 0 && val < 300)
59 cout << "dry";
60 else if (val >= 300 && val < 600)
61 cout << "moist";
62 else
63 cout << "wet";
64
65 cout << endl;
66
67 sleep(1);
68 }
69 //! [Interesting]
70
71 cout << "Exiting" << endl;
72
73 delete moisture;
74 return 0;
75 }
76