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66 lines
1.5 KiB
C
66 lines
1.5 KiB
C
/*
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* Copyright (C) 2015 Ludwig Knüpfer, Christian Mehlis
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* 2016-2017 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Test application for the dht humidity and temperature sensor driver
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*
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* @author Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
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* @author Christian Mehlis <mehlis@inf.fu-berlin.de>
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include "xtimer.h"
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#include "timex.h"
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#include "fmt.h"
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#include "dht.h"
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#include "dht_params.h"
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#define DELAY (2 * US_PER_SEC)
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int main(void)
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{
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dht_t dev;
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int16_t temp, hum;
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puts("DHT temperature and humidity sensor test application\n");
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/* initialize first configured sensor */
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printf("Initializing DHT sensor...\t");
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if (dht_init(&dev, &dht_params[0]) == DHT_OK) {
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puts("[OK]\n");
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}
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else {
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puts("[Failed]");
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return 1;
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}
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/* periodically read temp and humidity values */
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while (1) {
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if (dht_read(&dev, &temp, &hum) != DHT_OK) {
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puts("Error reading values");
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continue;
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}
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printf("DHT values - temp: %d.%d°C - relative humidity: %d.%d%%\n",
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temp/10, temp%10, hum/10, hum%10);
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xtimer_usleep(DELAY);
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}
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return 0;
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}
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