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 "grovewfs.h"
29
30using namespace std;
31
32int shouldRun = true;
33
34void sig_handler(int signo)
35{
36  if (signo == SIGINT)
37    shouldRun = false;
38}
39
40
41int main()
42{
43  signal(SIGINT, sig_handler);
44
45//! [Interesting]
46  // Instantiate a Grove Water Flow Sensor on digital pin D2
47  upm::GroveWFS* flow = new upm::GroveWFS(2);
48
49  // set the flow counter to 0 and start counting
50  flow->clearFlowCounter();
51  flow->startFlowCounter();
52
53  while (shouldRun)
54    {
55      // we grab these (,illis and flowCount) just for display
56      // purposes in this example
57      uint32_t millis = flow->getMillis();
58      uint32_t flowCount = flow->flowCounter();
59
60      float fr = flow->flowRate();
61
62      // output milliseconds passed, flow count, and computed flow rate
63      cout << "Millis: " << millis << " Flow Count: " << flowCount;
64      cout << " Flow Rate: " << fr << " LPM" << endl;
65
66      // best to gather data for at least one second for reasonable
67      // results.
68      sleep(2);
69    }
70
71  flow->stopFlowCounter();
72//! [Interesting]
73
74  cout << "Exiting..." << endl;
75
76  delete flow;
77  return 0;
78}
79