TH02_dev.h

/*
    TH02_dev.h
    Driver for DIGITAL I2C HUMIDITY AND TEMPERATURE SENSOR

    Copyright (c) 2014 seeed technology inc.
    Website    : www.seeed.cc
    Author     : Oliver Wang
    Create Time: April 2014
    Change Log :

    The MIT License (MIT)

    Permission is hereby granted, free of charge, to any person obtaining a copy
    of this software and associated documentation files (the "Software"), to deal
    in the Software without restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.
*/

#ifndef _TH02_DEV_H
#define _TH02_DEV_H

/****************************************************************************/
/***        Including Files                                               ***/
/****************************************************************************/
#include <Wire.h>
#include <Particle.h>

/****************************************************************************/
/***        Macro Definitions                                             ***/
/****************************************************************************/
#define TH02_I2C_DEV_ID      0x40
#define REG_STATUS           0x00
#define REG_DATA_H           0x01
#define REG_DATA_L           0x02
#define REG_CONFIG           0x03
#define REG_ID               0x11

#define STATUS_RDY_MASK      0x01    //poll RDY,0 indicate the conversion is done

#define CMD_MEASURE_HUMI     0x01    //perform a humility measurement
#define CMD_MEASURE_TEMP     0x11    //perform a temperature measurement

#define TH02_WR_REG_MODE      0xC0
#define TH02_RD_REG_MODE      0x80
/****************************************************************************/
/***        Class Definition                                              ***/
/****************************************************************************/
class TH02_dev {
  public:
    void begin();
    uint8_t isAvailable();
    float ReadTemperature(void);
    float ReadHumidity(void);
  private:
    void TH02_IIC_WriteCmd(uint8_t u8Cmd);
    uint8_t TH02_IIC_ReadReg(uint8_t u8Reg);
    void TH02_IIC_WriteReg(uint8_t u8Reg, uint8_t u8Data);
    uint16_t TH02_IIC_ReadData(void);
    uint16_t TH02_IIC_ReadData2byte(void);
};
extern TH02_dev TH02;

#endif  // _TH02_DEV_H