Реалізація системи контролю доступу з використанням RFID-технології та енергонезалежної пам'яті у вбудованих системах

Abstract

This paper presents the implementation of an autonomous access control subsystem for Smart Home environments, designed to operate without an Internet connection. The hardware architecture is based on an ATmega328P microcontroller and an RC522 RFID reader, communicating via a high-speed SPI interface. Special attention is given to developing an optimized software algorithm for managing nonvolatile EEPROM memory. This ensures secure local storage of user UIDs while preventing data fragmentation. The logic of continuous tag scanning, identification, and automatic actuator control is detailed. The proposed solution demonstrates high reliability, resilience to network threats, and proves the efficiency of local RFID systems in resource-constrained environments