As part of our final project, we developed a biometric access control system based on
two-factor authentication. The system utilizes an ESP32-WROOM-32 microcontroller and
communicates with the Firebase Realtime Database to store and transmit data. It provides
real-time user feedback through Telegram notifications, web interface messages, and LCD
display prompts. Access is granted when both the fingerprint and password are verified
within the allowed number of attempts; otherwise, access is denied. The system was
simulated using Proteus and programmed in C++ via the Arduino IDE.
Future improvements may include the integration of multimodal biometric authentication
to enhance security and system reliability.