This project has implemented two layered security architecture using micro-controller. Primary/first layer of security will implement user authentication system using smart RFID card. The list of authorized RFID’s will be kept as a database in a micro-controller memory. After user is successfully authenticated, the magnetic door will automatically open and close. Magnetic door is equipped with the magnetic switch to provide alarm in case of RFID security is breached. Project will implement alarm notification using the combination of both buzzer/sound and lightening/blinking the LED’s.

Step 1: Project Components

Arduino Micrcontroller (Qty-1) https://www.sparkfun.com/products/11021

RFID Reader (Qty-1) https://www.sparkfun.com/products/11827

RFID Tags (Qty-1) http://www.seeedstudio.com/depot/RFID-tag-combo-125khz-5-pcs-p-700.html

DC Motors (Qty-2) https://www.sparkfun.com/products/11696

L293D Chip (Qty-1) https://www.sparkfun.com/products/315

Arduino Power Cable (Qty-1) https://www.sparkfun.com/products/512

Motor Power Cable (Qty-1) https://www.sparkfun.com/products/10215

5 Volt Motor Supply (Qty-1) https://www.sparkfun.com/products/10217

Step 2: Circuit Diagram

Circuit diagram includes various components i.e. RFID tag, RFID reader, Door Open/Close, Magnetic Reed Switch, LED’s (Error, Success) and Buzzer Alarm.