Dual Microcontroller-Based Door Locker Security System Using Password Authentication

A Dual Microcontroller-Based Door Locker Security System Using Password Authentication designed to create a secure and efficient smart door control system. The project utilizes two ATmega32 microcontrollers — HMI_ECU and Control_ECU — which communicate through UART to manage password authentication and access control.

The system securely stores user data in external EEPROM and integrates additional hardware components including a PIR sensor for motion detection, an H-bridge motor for door movement, and a buzzer for security alerts.

Developed using C programming in Eclipse IDE, simulated in Proteus, and programmed with Eita Burner, this project strengthened skills in embedded C, UART communication, hardware interfacing, real-time control, and system integration for embedded security applications.