wiegand

A fork of node-wiegand for only 26bits wiegand readers on GPIO.
Tested with EM-18 Reader Module on a Raspberry Pi 3 model B.

installation

$ npm install --save wiegand-rfid-reader
#OR
$ npm install --save https://github.com/7aman/wiegand-rfid-reader.git

usage

const wiegand = require('wiegand-rfid-reader');
const reader = wiegand();
const Gpio = require('onoff').Gpio;

//export d0, d1 pins
const d0 = 17, d1 = 18;
const wgnd0 = new Gpio(d0, "in", "both");
const wgnd1 = new Gpio(d1, "in", "both");
reader.begin({ d0: d0, d1: d1});

reader.on('id', id => {
    console.log('Got', id, 'from RFID reader');
});

reader.on('error', err => {
    console.log(err);
});

process.on('SIGINT', () => {
  wgnd0.unexport();
  wgnd1.unexport();
});

api

class: Wiegand

inherits EventEmitter

method: begin([options], [callback])

default options:

{
    // RaspberryPI default
    d0: 17,
    d1: 18,
}

callback will fire on the ready event or if an error happens during the process. Errors will be emited on the error event.

method: stop([callback])

stop polling for changes to GPIO. Will callback when done and emit a stop event.

event: 'ready'

event: 'data'

event: 'error'

event: 'id'

event: 'stop'

license

The MIT License