Secure IoT Door Access FYP with ESP32, Keypad and Audit Logs
Build an ESP32 door access FYP with keypad, RFID option, relay control, user roles, logs, and safer demo boundaries.
Rectronx
2026-07-14
Quick Summary
A door access system is popular because the demo is clear: authenticate user, unlock output, record the event, and alert on failed attempts. The project becomes stronger when it includes audit logs and admin management, not just a relay opening a lock.
Project Scope
Use ESP32 with keypad, RFID, or both. The system validates access, controls a low-voltage lock or demo relay, stores logs, and gives admin control for allowed users.
For safety, demonstrate with a small solenoid lock or LED load unless your lab approves the door hardware.
Suggested Components
Use ESP32, 4x4 keypad, RC522 RFID reader, relay or MOSFET driver, buzzer, OLED, Firebase or local web dashboard, and 12V supply for lock hardware if used.
Build Steps
- Test keypad input and RFID scan separately.
- Build user validation logic.
- Add relay or lock output with proper driver circuit.
- Store successful and failed access logs.
- Add admin page to add, disable, or review users.
Accuracy and Safety Notes
Do not power a lock directly from ESP32 pins. Door access also involves physical security, enclosure quality, and fail-safe behavior. Present the system as an academic prototype.
Common Mistakes
- Hardcoding all passwords in the code.
- No failed attempt log.
- Weak power supply for lock hardware.
- Relay wiring without isolation awareness.
- No manual override or safe demo mode.