International Journal of Scientific Research and Engineering Development

Security is one of the major concerns in residential and commercial buildings. Traditional locking systems are vulnerable to duplication and unauthorized access. This paper presents the design and implementation of a Smart Door Lock System using RFID, Fingerprint Sensor, and Bluetooth Module. The system provides multi-level authentication to enhance security. RFID technology allows authorized users to unlock the door using a registered RFID card. The fingerprint sensor ensures biometric verification for higher security. Additionally, the Bluetooth module enables wireless access control through a smartphone. The proposed system improves safety, reliability, and user convenience while reducing the risk of unauthorized entry. The system is cost-effective and suitable for homes, offices, and institutions

Sonawane Mayuresh, Sonawane Darshan, Pimparkar Yuvraj, Prof. R.S.Arora,"Smart Door Lock Using RFID, Fingerprint Sensor and Bluetooth Module" International Journal of Scientific Research and Engineering Development, V9(2): Page(264-267) Mar-Apr 2026. ISSN: 2581-7175. www.ijsred.com. Published by Scientific and Academic Research Publishing.