2017 Announcement: I am happy to announce new project https://github.com/omersiar/esp-rfid ESP-RFID Access Control with ESP8266

Arduino RC522 RFID Access Control

July/2014 Omer Siar Baysal

Arduino RFID Access Control using a RC522 RFID reader with SPI interface on your Arduino

For now there is 3 version of Access Control

EEPROM Version

Storing data on EEPROM, Stable, Basic System

SD Version - Work In Progress

Storing data on SD Card, more features will be added like USER management Tracking with Real Time Clock

Embedded System - Work In Progress

Complete RFID solution with Networked Web Interface USER management Tracking with Real Time Clock Cross-Platform Management Application

More info on: http://forum.arduino.cc/index.php?topic=256260