upm/examples/c++/groveultrasonic.cxx

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/*
* Author: Jun Kato <i@junkato.jp>
* Copyright (c) 2015 Jun Kato.
*
* Thanks to Seeed Studio for a working arduino sketch
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <unistd.h>
#include <iostream>
#include "groveultrasonic.hpp"
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
upm::GroveUltraSonic *sonar = NULL;
bool running = true;
void
sig_handler(int signo)
{
if (signo == SIGINT) {
running = false;
}
}
int
main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
// upm::GroveUltraSonic *sonar = NULL;
sonar = new upm::GroveUltraSonic(2);
while(running) {
int width = sonar->getDistance();
printf("Echo width = %d\n", width);
printf("Distance inches = %f.2\n\n", width/148.0);
sleep(3);
}
//! [Interesting]
printf("exiting application\n");
delete sonar;
return 0;
}