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50 lines
1007 B
50 lines
1007 B
/*
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* Part of esp-open-rtos
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* Copyright (C) 2016 Jonathan Hartsuiker (https://github.com/jsuiker)
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* BSD Licensed as described in the file LICENSE
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*
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*/
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#ifndef __DHT_H__
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#define __DHT_H__
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#include <stdint.h>
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#include <stdbool.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* Sensor type
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*/
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typedef enum
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{
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DHT_TYPE_DHT11 = 0, //!< DHT11
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DHT_TYPE_DHT22, //!< DHT22
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DHT_TYPE_SI7021 //!< Itead SI7021
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} dht_sensor_type_t;
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/**
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* Read data from sensor on specified pin.
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*
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* Humidity and temperature is returned as integers.
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* For example: humidity=625 is 62.5 %
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* temperature=24.4 is 24.4 degrees Celsius
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*
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*/
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bool dht_read_data(dht_sensor_type_t sensor_type, uint8_t pin, int16_t *humidity, int16_t *temperature);
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/**
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* Float version of dht_read_data.
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*
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* Return values as floating point values.
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*/
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bool dht_read_float_data(dht_sensor_type_t sensor_type, uint8_t pin, float *humidity, float *temperature);
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#ifdef __cplusplus
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}
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#endif
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#endif // __DHT_H__
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