70 lines
3 KiB
C
70 lines
3 KiB
C
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/*
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* Copyright (c) 2015, Zolertia <http://www.zolertia.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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*/
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/**
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* \file
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* SHT25 temperature and humidity sensor driver
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* \author
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* Antonio Lignan <alinan@zolertia.com>
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*/
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#include "lib/sensors.h"
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#ifndef SHT25_H_
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#define SHT25_H_
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/* -------------------------------------------------------------------------- */
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#define SHT25_ADDR 0x40
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#define SHT25_TEMP_HOLD 0xE3
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#define SHT25_HUM_HOLD 0xE5
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#define SHT25_TEMP_NO_HOLD 0xF3
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#define SHT25_HUM_NO_HOLD 0xF5
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#define SHT2X_UREG_WRITE 0xE6
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#define SHT2X_UREG_READ 0xE7
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#define SHT2X_SOFT_RESET 0XFE
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#define SHT2X_NULL 0x00
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/* -------------------------------------------------------------------------- */
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#define SHT2X_RES_14T_12RH 0x00
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#define SHT2X_RES_12T_08RH 0x01
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#define SHT2X_RES_13T_10RH 0x80
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#define SHT2X_RES_11T_11RH 0x81
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#define SHT2X_HEATER_ON 0x04
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#define SHT2X_HEATER_OFF 0x00
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#define SHT2X_OTP_RELOAD_EN 0x00
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#define SHT2X_OTP_RELOAD_DIS 0x02
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/* -------------------------------------------------------------------------- */
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#define SHT25_VAL_TEMP SHT25_TEMP_HOLD
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#define SHT25_VAL_HUM SHT25_HUM_HOLD
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#define SHT25_ERROR -1
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/* -------------------------------------------------------------------------- */
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extern const struct sensors_sensor sht25;
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/* -------------------------------------------------------------------------- */
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#endif /* ifndef SHT25_H_ */
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