upm/examples/c/ds18b20.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

69 lines
1.4 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 "ds18b20.h"
#include "upm_utilities.h"
bool shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main(int argc, char **argv)
{
signal(SIGINT, sig_handler);
//! [Interesting]
printf("Initializing...\n");
// Instantiate an DS18B20 instance using the uart 0
ds18b20_context sensor = ds18b20_init(0);
if (!sensor)
{
printf("ds18b20_init() failed.\n");
return(1);
}
printf("Found %d device(s)\n\n", ds18b20_devices_found(sensor));
// update and print available values every 2 seconds
while (shouldRun)
{
// update our values for all sensors
ds18b20_update(sensor, -1);
for (unsigned int i=0; i<ds18b20_devices_found(sensor); i++)
{
printf("Device %02d: Temperature: %f C\n",
i, ds18b20_get_temperature(sensor, i));
}
printf("\n");
upm_delay(2);
}
printf("Exiting...\n");
ds18b20_close(sensor);
//! [Interesting]
return 0;
}