upm/examples/c/urm37-uart.c
Jon Trulson e7c80217c2 C examples: move mraa_init() calls out of C examples and into C drivers.
Signed-off-by: Jon Trulson <jtrulson@ics.com>
2016-09-28 17:34:42 -06:00

77 lines
2.1 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* 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 <signal.h>
#include "urm37.h"
#include "upm_utilities.h"
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a URM37 sensor on UART 0, with the reset pin on D2
urm37_context sensor = urm37_init(0, 2, 0, 0, 0, false);
if (!sensor)
{
printf("urm37_init() failed.\n");
return(1);
}
// Every half a second, sample the URM37 and output the measured
// distance in cm.
while (shouldRun)
{
float distance, temperature;
urm37_get_distance(sensor, &distance, 0);
printf("Detected distance (cm): %f\n", distance);
urm37_get_temperature(sensor, &temperature);
printf("Temperature (C): %f\n\n", temperature);
upm_delay_ms(500);
}
//! [Interesting]
printf("Exiting\n");
urm37_close(sensor);
return 0;
}