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 :
| Board | Digital Pins Usable For Interrupts |
| ================================== | ================================== |
| Uno, Nano, Mini, other 328-based | 2, 3 |
| Mega, Mega2560, MegaADK | 2, 3, 18, 19, 20, 21 |
| Micro, Leonardo, other 32u4-based | 0, 1, 2, 3, 7 |
| Zero | all digital pins, except 4 |
| MKR1000 Rev.1 | 0, 1, 4, 5, 6, 7, 8, 9, A1, A2 |
| Due | all digital pins |
| 101 | all digital pins |
| WeMos_D1, WeMos_D1 mini,NodeMCU | all digital pins |
| ESP8266 | all digital pins |
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.