Door Locker Security System

This project implements a Door Locker Security System using two ATmega32 Microcontrollers with a frequency of 8Mhz. It is designed based on a layered architecture model with the following components:

• HMI_ECU (Human Machine Interface): Includes a 2x16 LCD and a 4x4 keypad for user interaction.
• Control_ECU: Manages the system's processing and decisions, including password checking, door unlocking, and system alarm activation. It includes EEPROM, a buzzer, and a DC motor.

System Sequence

1. Create a System Password: The user sets a password consisting of 5 numbers, which is saved in the EEPROM.
2. Main Options: The LCD displays the main system options.
3. Open Door: User enters the password to unlock the door. If the password matches, the DC motor rotates to unlock the door.
4. Change Password: User can change the password by entering the current password and then entering a new one.
5. Password Matching Handling: If the password does not match, the system asks the user to re-enter it. If the password is not matched for the third consecutive time, the system activates the buzzer and locks the system for a minute.

GPIO Driver

• Uses the same GPIO driver implemented in the course.
• Same driver used in both ECUs.

LCD Driver

• Uses a 2x16 LCD.
• Uses the same LCD driver implemented in the course with 8-bits or 4-bits data mode.
• LCD is connected to the HMI_ECU.

Keypad Driver

• Uses a 4x4 keypad.
• Keypad is connected to the HMI_ECU.

DC Motor Driver

• Uses the same DC Motor driver implemented in the fan controller project.
• Motor is connected to the CONTROL_ECU.

EEPROM Driver

• Uses the same external EEPROM driver controlled by I2C.
• EEPROM is connected to the CONTROL_ECU.

I2C Driver

• Uses the same I2C driver implemented in the course.
• Used in the CONTROL_ECU to communicate with the external EEPROM.

UART Driver

• Uses the same UART driver implemented in the course.
• Same driver used in both ECUs.

Timer Driver

• Uses the same driver in both ECUs.
• Timer1 is used in the HMI_ECU for counting display message time and in the CONTROL_ECU for controlling the motor.

Buzzer Driver

• Implements a full Buzzer driver.
• Buzzer is connected to the CONTROL_ECU.