/*
* 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 _ARDUINO_TH02_H
#define _ARDUINO_TH02_H

/****************************************************************************/
/***        Including Files                                               ***/
/****************************************************************************/
#include <Wire.h>
#include <Arduino.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);
	static TH02_dev& getSingleItem();
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);
	TH02_dev();
	TH02_dev(const TH02_dev&);
	TH02_dev& operator= (const TH02_dev&);
};

#endif  // _TH02_DEV_H


