Authorised door security system

In today’s modem life, technology has become source of income for most of the people in the world. But, with such technologies, many classified data regarding company data or personal information has been created. Many classified data has been leaked to the outside world nowadays because of offices break in cases. This case has really affecting the owner of the classified data and the worst thing is it can cause major loss to the company or may harm the owner of the classified data itself. So, this project is created to overcome the problems. This project is designed using Radio-frequency identification (RFID) as the key to open the automatic door lock system. The component used in this project is the important key that makes the system more precise and secure. The system is using Arduino UNO R3 as the brain to control the process flow of each component. The servo motor open and closed the door lock when the RFID card scanned. The Liquid Crystal Display (LCD) displaying the desired words and the indicators lights up automatically for each situations. Meanwhile the button switch can open the door lock manually from the inside and the buzzer can sound when unauthorised RFID card is scanned. From the flow process, it is observed that the security of the system is improved when Radio-frequency identification (RFID) is used in the system.