/* Ultrasonic.h - Library for HR-SC04 Ultrasonic Ranging Module. Created by ITead studio. Alex, Apr 20, 2010. iteadstudio.com */ #ifndef Ultrasonic_h #define Ultrasonic_h #include "Arduino.h" #define CM 1 #define INC 0 class Ultrasonic { public: Ultrasonic(int TP, int EP); long Timing(); long Ranging(int sys); private: int Trig_pin; int Echo_pin; long duration,distacne_cm,distance_inc; }; #endif