Adafruit_HTU21DF.h

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#ifndef _ADAFRUIT_HTU21DF_H
#define _ADAFRUIT_HTU21DF_H

#include <Adafruit_BusIO_Register.h>
#include <Adafruit_I2CDevice.h>

#define HTU21DF_I2CADDR (0x40)

#define HTU21DF_READTEMP (0xE3)

#define HTU21DF_READHUM (0xE5)

#define HTU21DF_WRITEREG (0xE6)

#define HTU21DF_READREG (0xE7)

#define HTU21DF_RESET (0xFE)

class Adafruit_HTU21DF {
public:
  Adafruit_HTU21DF();

  bool begin(TwoWire *theWire = &Wire);
  float readTemperature(void);
  float readHumidity(void);
  void reset(void);

private:
  Adafruit_I2CDevice *i2c_dev = NULL; 
  float _last_humidity, _last_temp;
};

#endif /* _ADAFRUIT_HTU21DF_H */