nes-proj/examples/platform-specific/zoul/test-bme280.c

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/*
* Copyright (c) 2016, Zolertia <http://www.zolertia.com>
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/*---------------------------------------------------------------------------*/
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/**
* \addtogroup zoul-examples
* @{
*
* \defgroup zoul-bme280-test BME280 temperature and humidity sensor test
*
* Demonstrates the use of the BME280 digital temperature and humidity sensor
* @{
*
* \file
* A quick program for testing the BME280 temperature and humidity sensor
* \author
* Antonio Lignan <alinan@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include <stdio.h>
#include "contiki.h"
#include "dev/bme280/bme280.h"
#include "dev/bme280/bme280-sensor.h"
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/*---------------------------------------------------------------------------*/
#define BME280_USE_STD_API 1
/*---------------------------------------------------------------------------*/
PROCESS(zoul_bme280_process, "BME280 test");
AUTOSTART_PROCESSES(&zoul_bme280_process);
/*---------------------------------------------------------------------------*/
static struct etimer et;
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(zoul_bme280_process, ev, data)
{
PROCESS_BEGIN();
SENSORS_ACTIVATE(bme280_sensor);
/* Let it spin and read sensor data */
while(1) {
etimer_set(&et, CLOCK_SECOND);
PROCESS_WAIT_EVENT_UNTIL(etimer_expired(&et));
#if BME280_USE_STD_API
printf("temperature = %-d ", bme280_sensor.value(BME280_SENSOR_TEMP));
printf("humidity = %-d ", bme280_sensor.value(BME280_SENSOR_HUMIDITY));
printf("pressure = %-d\n", bme280_sensor.value(BME280_SENSOR_PRESSURE));
#else /* BME280_USE_STD_API */
/* Trigger burst read */
bme280_sensor.value(BME280_SENSOR_TEMP);
printf("temperature = %5.2f" , (double)bme280_mea.t_overscale100 / 100.);
printf("humidity = %5.2f ", (double)bme280_mea.h_overscale1024 / 1024.);
#ifdef BME280_64BIT
printf("pressure = %5.2f\n", (double)bme280_mea.p_overscale256 / 256.);
#else /* BME280_64BIT */
printf("pressure = %5.2f\n", (double)bme280_mea.p);
#endif /* BME280_64BIT */
#endif /* BME280_USE_STD_API */
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/
/**
* @}
* @}
*/