1/*
2* Author: Zion Orent <zorent@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#include <iostream>
25#include <time.h>
26#include <signal.h>
27#include "groveelectromagnet.h"
28
29using namespace std;
30
31int shouldRun = true;
32
33void sig_handler(int signo)
34{
35  if (signo == SIGINT)
36    shouldRun = false;
37}
38
39float get_time()
40{
41	return ((float)(clock()))/CLOCKS_PER_SEC;
42}
43
44int main(int argc, char **argv)
45{
46  signal(SIGINT, sig_handler);
47
48//! [Interesting]
49  // The was tested with the Grove Electromagnetic Module
50  // Instantiate a Grove Electromagnet on digital pin D2
51  upm::GroveElectromagnet* magnet = new upm::GroveElectromagnet(2);
52  cout << "Starting up magnet...." << endl;
53  magnet->off();
54
55  bool magnetState = false;
56  float time_passed = get_time();
57
58  // Turn magnet on and off every 5 seconds
59  while (shouldRun)
60  {
61	if ((get_time() - time_passed) > 5.0)
62	{
63		magnetState = !magnetState;
64		if (magnetState)
65			magnet->on();
66		else
67			magnet->off();
68		cout << "Turning magnet " << ((magnetState) ? "on" : "off") << endl;
69		time_passed = get_time();
70	}
71  }
72
73//! [Interesting]
74  magnet->off();
75  cout << "Exiting" << endl;
76
77  delete magnet;
78  return 0;
79}
80