The Wiegand interface is a de facto standard commonly used to connect a card reader or keypad to an electronic entry system. Wiegand interface has the ability to transmit signal over long distance with a simple 3 wires connection. This library uses interrupt pins from Arduino to read the pulses from Wiegand interface and return the code and type of the Wiegand.

The following are needed

Arduino uno / Mega 2560 Any compatible board should work following the interupt pin assigment :

Wiegand RFID Reader pin connection Example :

for ARDUINO UNO :

	Reader 1 :
	
	DATA0 of Wiegand connects to Arduino PIN 2 
	DATA1 of Wiegand connects to Arduino PIN 3

	Reader 2 : NOT USED

	Reader 3 : NOT USED

for ARDUINO MEGA2560 :

	Reader 1 :

	DATA0 of Wiegand connects to Arduino PIN 2 
	DATA1 of Wiegand connects to Arduino PIN 3

	Reader 2 :

	DATA0 of Wiegand connects to Arduino PIN 21 
	DATA1 of Wiegand connects to Arduino PIN 20

	Reader 3 :

	DATA0 of Wiegand connects to Arduino PIN 19 
	DATA1 of Wiegand connects to Arduino PIN 18

Installation Follow the instruction for library installation in Arduino.cc web site.

Adding compatibility to all the arduino board 

Bug fix on reader 3 

Add the possibility to select which gate need to be active passing parameters to : wg.begin(GateA, GateB , GateC);

Library come from original library developed from http://www.monkeyboard.org

original library can download from :

https://github.com/monkeyboard/Wiegand-Protocol-Library-for-Arduino

Thanks

Francesco Uggetti

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.