upm/examples/c/rpr220.c
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

60 lines
1.2 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2015 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#include <unistd.h>
#include <signal.h>
#include <upm_utilities.h>
#include <rpr220.h>
int shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// This example uses a simple method to determine current status
// Instantiate an RPR220 digital pin D2
// This was tested on the Grove IR Reflective Sensor
rpr220_context sensor = rpr220_init(2);
if (!sensor)
{
printf("rpr220_init() failed\n");
return 1;
}
while (shouldRun)
{
if (rpr220_black_detected(sensor))
printf("Black detected\n");
else
printf("Black NOT detected\n");
upm_delay_ms(100); // 100ms
}
printf("Exiting...\n");
rpr220_close(sensor);
//! [Interesting]
return 0;
}