Embedded Security & Access • ECE • EIE • EEE • 3rd Year Mini Project (5th/6th Sem)
Biometric & RFID Security Terminal
An embedded microcontroller security lock with optical fingerprint template storage, encrypted 13.56MHz RFID card authentication, and fail-safe 12V electromagnetic solenoid strike relay.
Hardware Bench Preview
Component Bill of Materials (BOM)
Total: ₹1,340 1. Arduino Nano (ATmega328P 16MHz Mini Board)
Qty: 1 ₹240
2. R307 Optical Fingerprint Sensor Module
Qty: 1 ₹680
3. RC522 13.56MHz RFID Reader with Mifare Keycards
Qty: 1 ₹140
4. 16x2 I2C Character LCD with Blue Backlight
Qty: 1 ₹180
5. 1-Channel 5V Optocoupled Relay Module
Qty: 1 ₹50
6. Piezo Acoustic Buzzer & Dual Bi-Color Status LEDs
Qty: 1 ₹50
Academic Deliverables Included
- ✓ 30-page university Minor Project report with circuit flowcharts and truth tables
- ✓ Complete EasyEDA / KiCAD breadboard wiring diagram and pin assignment sheet
- ✓ Fully commented Arduino C++ source code with enrollment/deletion routines
- ✓ Concise 15-slide Viva presentation focusing on serial communication and SPI protocols
Bench Testing Benchmarks
- • Dual-factor authentication: RFID swipe followed by fingerprint biometric matching
- • 128-template capacity stored directly inside sensor flash memory
- • Anti-tamper alarm triggered upon repeated unauthorized keycard attempts
- • Optically isolated relay drive to eliminate inductive kickback from door solenoids