#pragma once
//
//    FILE: DHT12.h
//  AUTHOR: Rob Tillaart
// PURPOSE: DHT_I2C library for Arduino .
// VERSION: 0.3.2
// HISTORY: See DHT12.cpp
//     URL: https://github.com/RobTillaart/DHT12
//


#include "Arduino.h"
#include "Wire.h"

#define DHT12_LIB_VERSION                    (F("0.3.2"))

#define DHT12_OK                             0
#define DHT12_ERROR_CHECKSUM                -10
#define DHT12_ERROR_CONNECT                 -11
#define DHT12_MISSING_BYTES                 -12


class DHT12
{
public:
  DHT12(TwoWire *wire);        // to be tested explicitly

#if defined(ESP8266) || defined(ESP32)
  bool     begin(const uint8_t dataPin, const uint8_t clockPin);
#endif
  bool     begin();

  bool     isConnected();

  int8_t   read();
  float    getHumidity()    { return _humidity    + _humOffset; };
  float    getTemperature() { return _temperature + _tempOffset; };

  // allows 1st order calibration
  void     setHumOffset(float offset)  { _humOffset  = offset; };
  void     setTempOffset(float offset) { _tempOffset = offset; };
  float    getHumOffset()              { return _humOffset; };
  float    getTempOffset()             { return _tempOffset; };
  uint32_t lastRead()                  { return _lastRead; };

private:
  float    _humidity;
  float    _temperature;
  float    _humOffset;
  float    _tempOffset;
  uint8_t  _bits[5];
  uint32_t _lastRead;
  
  int      _readSensor();
  TwoWire* _wire;
};


// -- END OF FILE --