This project is the work of the student Rand Osama Abdalmajeed from the Systems Engineering Department, supervised by Asst. Lect. Noor A. Hundal.

With the increasing demand for secure and intelligent access control systems, this graduation project introduces a dual-layer security solution through the implementation of Bi-level Authentication Using Bluetooth and RFID Powered by Arduino. The project offers an innovative smart lock system that integrates two popular wireless technologies—Bluetooth and RFID—working in unison to provide enhanced protection and convenience.

The heart of the system is an Arduino Uno board that manages the interaction between two authentication methods and controls an electronic solenoid lock. Access is granted only when both authentication factors—a valid RFID tag and a trusted Bluetooth signal from a smartphone—are present. This dual verification approach significantly increases the reliability and security of the system, reducing the likelihood of unauthorized access.

To facilitate Bluetooth authentication, a custom-built Android application is developed to communicate with the Arduino, sending lock/unlock commands once the device is within range. In parallel, the RFID module scans physical tags, ensuring the user possesses the correct identification. Only when both inputs are validated does the Arduino trigger the solenoid lock to open the door.

This bi-level authentication approach enhances traditional single-factor systems by requiring the user to be in possession of both a registered RFID card and an authenticated mobile device. Such a mechanism makes it suitable for environments that demand higher levels of security, including office access points, personal lockers, and even smart home systems.

The system’s design is modular, making it adaptable for future enhancements such as integration with biometric sensors, remote monitoring via IoT, or adding logging capabilities for access history. Potential challenges such as signal interference, power stability, or range limitations are acknowledged and considered for future improvement.

In conclusion, Bi-level Authentication Using Bluetooth and RFID Powered by Arduino demonstrates how embedded systems and wireless technologies can be effectively combined to create smarter and more secure access control solutions. The project not only reflects the technical capabilities of microcontroller-based development but also addresses real-world concerns in personal and institutional security.