text: #ifndef IRSensor_h
  #define IRSensor_h
  
  #include "Arduino.h"
  
  class IRSensor
  {
    public:
      IRSensor(int pin);
      int rawValue(void);
      byte byteValue(void);
    private:
      int _pin;//pin number of Arduino that is connected with SIG pin of IR sensor.
      int value;//the raw value of the sensor
  };
  
  #endif
  