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66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* Copyright (C) 2015 Ludwig Knüpfer, Christian Mehlis
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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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*
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* @}
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*/
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#ifndef DHT_TYPE
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#error "DHT_TYPE not defined"
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#endif
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#ifndef DHT_GPIO
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#error "DHT_GPIO not defined"
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#endif
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#include <stdio.h>
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#include "xtimer.h"
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#include "dht.h"
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int main(void)
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{
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dht_t dev;
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puts("DHT temperature and humidity sensor test application\n");
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printf("Initializing DHT sensor at GPIO_%ld... ", (long)DHT_GPIO);
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if (dht_init(&dev, DHT_TYPE, DHT_GPIO) == 0) {
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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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dht_data_t data;
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float temp, hum;
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while (1) {
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if (dht_read_raw(&dev, &data) == -1) {
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puts("error reading data");
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}
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dht_parse(&dev, &data, &hum, &temp);
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printf("raw relative humidity: %i\nraw temperature: %i C\n", data.humidity, data.temperature);
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printf("relative humidity: %i\ntemperature: %i C\n", (int) hum, (int) temp);
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xtimer_usleep(2000 * MS_IN_USEC);
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}
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return 0;
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}
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