RFID Access Control System 🚪🔒

An Arduino-based smart gate system that uses RFID to allow access only to authorized users.

💡 Features

• RFID authentication with MFRC522
• Servo motor to open/close gate
• Logs card UID via serial monitor
• Rejects unauthorized users
• Easy to modify UID and gate settings

🔌 Hardware Used

• Arduino Uno
• MFRC522 RFID Module
• Servo Motor
• Jumper Wires
• Breadboard

🧠 How It Works

1. RFID reader scans for new cards.
2. When a card is detected, its UID is compared.
3. If matched, gate opens for 5 seconds.
4. If not, an alert can be triggered (buzzer/LED).
5. Gate closes automatically after delay.

• 

🛠 Setup Instructions

1. Wire the RFID reader (using SPI) and servo to Arduino.
2. Upload .ino code using Arduino IDE.
3. Update authorizedCard[] array with your RFID tag’s UID.
4. Open Serial Monitor to see logs.

---

📘 License

MIT License – feel free to reuse and build on it!