IoT-Enabled RFID Authentication and Intrusion Detection Framework Using ESP32

The IoT-Enabled RFID Authentication and Intrusion Detection Framework Using ESP32 is an advanced security solution designed to provide intelligent access control and real-time intrusion detection for restricted environments. The system employs an RFID-RC522 reader to authenticate authorized users and an ESP32 microcontroller as the central processing and wireless communication unit.

When a valid RFID card is presented, the system grants access and displays the authentication status on an OLED display. If an unauthorized card is detected or an intrusion attempt occurs, the system immediately activates a buzzer alarm and records the security event. A push switch can be used as an emergency trigger, tamper detection input, or manual security control.

The ESP32's integrated Wi-Fi capability enables remote monitoring and notification through IoT platforms, allowing security personnel to receive instant alerts and access logs from anywhere. The system is powered by a rechargeable 3.7V lithium battery pack protected by a 3S BMS, ensuring reliable portable operation and battery safety.

The proposed framework enhances physical security, improves monitoring efficiency, and provides a scalable platform for smart buildings, industrial facilities, laboratories, and restricted-access environments.