WallSegmentClock/include/AHTxx.h

#pragma once
#ifndef _AHTxx_H_
#define _AHTxx_H_

#include <SmingCore.h>

/* Status code */
typedef enum {
  St_OK = 0,
  St_DataToLong = 1,
  St_NACK_Addr = 2,
  St_NACK_Data = 3,
  St_Error = 4,
  St_Timeout = 5
} ahtxx_st_t;

/* Data type */
typedef struct {
  uint16_t Humidity;
  int16_t Temperature;
  ahtxx_st_t Error;
} ahtxx_t;

class AHTxx
{
public:
  AHTxx(void);
  void StartMeasure(void);
  void SoftReset(void);
  void GetData(ahtxx_t * data);
  bool IsReadyToRequest(void);
  bool IsDataReady(void);

private:
  static void Init(void);
  static ahtxx_st_t I2CWriteTo(uint8_t DataToSend);
  static uint8_t Calc_CRC8(uint8_t *message, uint8_t Num);
  static ahtxx_st_t JH_Reset_REG(uint8_t addr);
};

#endif /* _AHTxxH_ */