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VOL. 13, ISSUE 2 (2026)
Smart door using RFID authentication
Authors
S Saranya, G Abinaya, S Syed Saqtha
Abstract
This paper presents the design and implementation
of a Smart Door System using RFID Authentication for secure and
contactless access control. The proposed system replaces conventional
lock-and-key mechanisms with an automated solution that enhances security and
operational efficiency. The system is developed using an ESP32 microcontroller,
integrated with an RC522 RFID reader to capture and verify the unique
identification (UID) of RFID cards. Access is granted only when the scanned UID
matches the pre-stored authorized database; otherwise, access is denied. A
servo motor is employed to control the physical locking and unlocking of the
door, ensuring reliable actuation. Additionally, a 16×2 LCD display provides
real-time user feedback, while a buzzer generates audio alerts for
authentication status. The system demonstrates effective utilization of
embedded systems and Internet of Things (IoT) concepts for developing
intelligent security solutions. The proposed model is cost-effective, scalable,
and can be extended with advanced features such as cloud integration, mobile
application control, and real-time notification systems.
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Pages:246-250
How to cite this article:
S Saranya, G Abinaya, S Syed Saqtha "Smart door using RFID authentication". International Journal of Multidisciplinary Research and Development, Vol 13, Issue 2, 2026, Pages 246-250
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