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