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73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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/*
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* Copyright 2009 Freie Universitaet Berlin (FUB)
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* 2018 Otto-von-Guericke-Universität Magdeburg
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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 drivers_sht1x
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* @{
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*
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* @file
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* @brief Internal defines required by the SHT10/SHT11/SHT15 driver
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*
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* @author Marian Buschsieweke <marian.buschsieweke@ovgu.de>
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*/
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#ifndef SHT1X_DEFINES_H
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#define SHT1X_DEFINES_H
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#include <stdint.h>
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#include <periph/gpio.h>
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#include <mutex.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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* @name Possible values to pass as `ack` parameter to `write_byte`
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* @see write_byte
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* @{
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*/
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#define SHT1X_NO_ACK (1) /**< don't ack read in `read_byte` */
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#define SHT1X_ACK (0) /**< do acknowledge read in `read_byte` */
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/** @} */
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/**
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* @name Commands that can be sent to the SHT1X driver
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* @{
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*/
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#define SHT1X_STATUS_REG_W (0x06) /**< will write to status register */
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#define SHT1X_STATUS_REG_R (0x07) /**< will read from status register */
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#define SHT1X_MEASURE_TEMP (0x03) /**< tell sensor to measure temperature */
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#define SHT1X_MEASURE_HUM (0x05) /**< tell sensor to measure humidity */
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#define SHT1X_RESET (0x1E) /**< reset the sensor */
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/** @} */
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/**
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* @name Timing parameters for the SHT10/SHT1X/SHT15
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* @{
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*/
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#define SHT1X_HALF_CLOCK (1) /**< Half clock length in µsec */
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#define SHT1X_MEASURE_TIMEOUT (1000) /**< Timeout for the SHT1x to complete
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the measurement (in millisec) */
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#define SHT1X_RESET_WAIT (11000) /**< Wait 11ms after soft reset */
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/** @} */
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#define SHT1X_CONF_MASK (0x07) /**< Bitmask to get writable bits of the
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status byte */
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#define SHT1X_SAUL_RETRIES (3) /**< How often reading the sensor should
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be retried in case of communication
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failures */
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#ifdef __cplusplus
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}
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#endif
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#endif /* SHT1X_DEFINES_H */
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/** @} */
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