RFID based Door Access System for identified list of people along with the database management about their personal details

As an initiative to teach juniors in college, I had to design RFID based door access system. The aim was to teach about RFID technology, basic coding on Arduino microcontroller and integration of motors and different sensors with Arduino. I have designed authorized door access system. I created a database with names of all people allowed to access. If an unidentified person tries to access, the monitor shows a text with access denied. If a known person enters, it opens the door with a positive message. Also a full database is managed about personal details of authorized people and can only be accessed through a master RFID card.