contiki/platform/zoul/dev/sht25.h

94 lines
3.8 KiB
C

/*
* Copyright (c) 2015, Zolertia <http://www.zolertia.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the Contiki operating system.
*
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup zoul-sensors
* @{
*
* \defgroup zoul-sht25-sensor SHT25 digital temperature sensor
* @{
*
* \file
* SHT25 temperature and humidity sensor driver header file
* \author
* Antonio Lignan <alinan@zolertia.com>
*/
/*---------------------------------------------------------------------------*/
#include "lib/sensors.h"
/* -------------------------------------------------------------------------- */
#ifndef SHT25_H_
#define SHT25_H_
/* -------------------------------------------------------------------------- */
#define SHT25_ADDR 0x40
#define SHT25_TEMP_HOLD 0xE3
#define SHT25_HUM_HOLD 0xE5
#define SHT25_TEMP_NO_HOLD 0xF3
#define SHT25_HUM_NO_HOLD 0xF5
#define SHT2X_UREG_WRITE 0xE6
#define SHT2X_UREG_READ 0xE7
#define SHT2X_SOFT_RESET 0XFE
#define SHT2X_NULL 0x00
/* -------------------------------------------------------------------------- */
#define SHT2X_RES_14T_12RH 0x00
#define SHT2X_RES_12T_08RH 0x01
#define SHT2X_RES_13T_10RH 0x80
#define SHT2X_RES_11T_11RH 0x81
#define SHT2X_HEATER_ON 0x04
#define SHT2X_HEATER_OFF 0x00
#define SHT2X_OTP_RELOAD_EN 0x00
#define SHT2X_OTP_RELOAD_DIS 0x02
#define SHT2x_LOW_VOLTAGE_MASK 0x40
#define SHT2x_LOW_VOLTAGE_SHIFT 0x06
/* -------------------------------------------------------------------------- */
#define SHT25_ACTIVE SENSORS_ACTIVE
#define SHT25_SOFT_RESET 0x01
#define SHT25_RESOLUTION 0x02
#define SHT25_VAL_TEMP SHT25_TEMP_HOLD
#define SHT25_VAL_HUM SHT25_HUM_HOLD
#define SHT25_VOLTAGE_ALARM 0x01
#define SHT25_ERROR (-1)
#define SHT25_SUCCESS 0x00
#define SHT25_RESET_DELAY 15000
#define SHT25_STATUS_BITS_MASK 0x0003
/* -------------------------------------------------------------------------- */
#define SHT25_SENSOR "SHT25 Sensor"
/* -------------------------------------------------------------------------- */
extern const struct sensors_sensor sht25;
/* -------------------------------------------------------------------------- */
#endif /* ifndef SHT25_H_ */
/**
* @}
* @}
*/