Wiegand 26 and Wiegand 34 module for Node.js and using on Raspberry Pi
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 module uses interrupt pins from Raspberry Pi to read the pulses from Wiegand interface and return the code and type of the Wiegand.
Installation
npm install wiegand-node
Example
"use strict";
const Wiegand = require('wiegand-node');
var pinD0 = 4, //DATA0 of Wiegand connects to RPi GPIO04 (Pin 7)
pinD1 = 17; //DATA1 of Wiegand connects to RPi GPIO17 (Pin 11)
const w = new Wiegand({ d0: pinD0, d1: pinD1 });
w.begin();
w.on('reader', (idDec, idRFID, idHex) => {
console.log(idDec); // RAW data
console.log(idRFID); // EM format
console.log(idHex); // Mifare format
});
Settings
const w = new Wiegand(
{
d0: int, // the number of your GPIO PIN. This means eg. "4" for "GPIO04", not 7 from "Pin 7" | default 4
d1: int // the number of your GPIO PIN. This means eg. "17" for "GPIO17", not 11 from "Pin 11" | default 11
debug: bool // enable debug console output | default false
}
);
Available Watchers
w.on('reader', (idDec, idRFID, idHex) => {
// stuff
});
w.on('reader_failed_parity', (data) => {
// stuff
});