Can I read a Wiegand Protocol directly with Arduino Due?

ard_newbie · October 17, 2017, 3:19am

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monkeyboard/Wiegand-Protocol-Library-for-Arduino/blob/master/README.md

# Wiegand 4 bit, 8 bit, 24 bit, 26 bit, 32 bit and 34 bit library for Arduino

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.

# Different Wiegand libraries comparison

| Library | Description |
| ---| --- |
| [Wiegand library](https://github.com/monkeyboard/Wiegand-Protocol-Library-for-Arduino) | This is the easiest and cleanest library to use when only a single wiegand reader is needed. I strongly suggest to use this version if you only need one reader support |
| [Wiegand NG library](https://github.com/jpliew/Wiegand-NG-Multi-Bit-Wiegand-Library-for-Arduino) | This is another single reader library, however it uses dynamic memory to store the raw wiegand thus allowing unlimited bit length to be stored as long as your Arduino board has the memory to store it. I won't recommend to use this library unless you are facing a non-standard wiegand reader that sends out data that will not be decoded by the original Wiegand library. |
| [Multi Wiegand library](https://github.com/jpliew/Multi-Reader-Wiegand-Protocol-Library-for-Arduino) | This library uses pin change interrupt this allowing all the pin change interrupt supported pin to be used. With this, multiple readers can also be supported. Due to a workaround (hack) used to overcome the limitation with `attachInterrupt` not being able to be attached to class method directly, the initialisation of the sketch is more ugly and complicated. |

## Requirements

The following are needed 

* [Arduino](http://www.arduino.cc) - Any ATMEGA328 compatible board should work.
* [Wiegand RFID Reader](http://www.monkeyboard.org/products/85-developmentboard/84-rfid-wiegand-protocol-development-kit) - The code was written for this reader however customers reported working with [HID](http://www.hidglobal.com/products/cards-and-credentials) compatible readers.
* DATA0 of Wiegand connects to Arduino PIN 2 and DATA1 of Wiegand connects to Arduino PIN 3

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Can I read a Wiegand Protocol directly with Arduino Due?

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