upm/examples/c/ppd42ns.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

54 lines
1.1 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 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 <stdio.h>
#include <signal.h>
#include <ppd42ns.h>
int shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a dust sensor on GPIO pin D8
ppd42ns_context dust = ppd42ns_init(8);
ppd42ns_dust_data data;
printf("This program will give readings every 30 seconds until "
"you stop it\n");
while (shouldRun)
{
data = ppd42ns_get_data(dust);
printf("Low pulse occupancy: %d\n", data.lowPulseOccupancy);
printf("Ratio: %f\n", data.ratio);
printf("Concentration: %f\n\n", data.concentration);
}
printf("Exiting...\n");
ppd42ns_close(dust);
//! [Interesting]
return 0;
}