WiegandNG.h

#ifndef _WIEGAND_NG_H
#define _WIEGAND_NG_H

#if defined(ARDUINO) && ARDUINO >= 100
#include "Arduino.h"
#else
#include "WProgram.h"
#endif

class WiegandNG {

private:
	static void ReadD0();
	static void ReadD1();
	static volatile unsigned long 	_lastPulseTime;		// time last bits received
	static volatile unsigned int 	_bitCounted;		// number of bits arrived at Interrupt pins
	static unsigned int				_bufferSize;		// memory (bytes) allocated for buffer
	unsigned int					_bitAllocated;		// wiegand bits required
	unsigned int					_packetGap;			// gap between wiegand packet in millisecond
	static volatile unsigned char *	_buffer;			// buffer for data retention
	
public:
	bool begin(unsigned int bits, unsigned int packetGap=25);				// default packetGap is 25ms
	bool begin(uint8_t pinD0, uint8_t pinD1, unsigned int bits, unsigned int packetGap);
	bool available();
	void clear();
	void pause();
	unsigned int getBitCounted();
	unsigned int getBitAllocated();
	unsigned int getBufferSize();
	unsigned int getPacketGap();
	volatile unsigned char *getRawData();
	WiegandNG();
	~WiegandNG();
};

#endif