//*********************************************************
//
// Student Name: Constance Luong
// UID: U6709-3342
// Date: Spring 2015, February 25, 2015
// File name: HCSR04ProxSensor.h
// Assignment: Deliverable 3
// Goal: To create a library using C++ code that controls
//      the HCSR04 Proximity Sensor on the Arduino Board
//
//**********************************************************


#ifndef HCSR04_h
#define HCSR04_h

#include "Arduino.h"

// Class definition for HCSR04ProxSensor type
class HCSR04ProxSensor
{
  
// Functions for class HCSR04ProxSensor
public:
  HCSR04ProxSensor(int triggerPin, int echoPin); // Constructor for HCSR04ProxSensor object with two parameters
  float readSensor(); // Measures distance captured from readings of burst measurements
  float getLastValue();

// Establishing private variables and type (integers and decimal)
private:
  int _triggerPin;  
  int _echoPin;
  float _distance; // float == allows for decimal numbers
  float _distance2;
};
// end class definition

#endif