37 lines
926 B
C
37 lines
926 B
C
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/**
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* @file
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* Header file for the zh_ds18b20 component.
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*
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*/
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#pragma once
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#include "stdio.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "zh_onewire.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/**
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* @brief Read temperature from a specific 1-Wire device on bus.
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*
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* @param[in] device Pointer to a buffer containing an eight-byte rom value. Can be NULL if only one 1-Wire device is present on the bus.
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*
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* @param[out] temperature Pointer to a buffer containing the received temperature.
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*
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* @attention 1-Wire bus must be initialized first. @code zh_onewire_init(GPIO_NUM_X) @endcode
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*
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* @return
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* - ESP_OK if read was successful
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* - ESP_FAIL if any error
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* - ESP_ERR_INVALID_CRC if check CRC is fail
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*/
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esp_err_t zh_ds18b20_read(const uint8_t *device, float *temperature);
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#ifdef __cplusplus
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}
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#endif
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