Attendance Biometric System

MCU

ATmega32 Microcontroller

Hardware Peripherals

R503 Finger Print Module

DS1307 RTC Module

M24C08 EEPROM Module

4*20 LCD Unit

4*4 Keypad unit

MCAL (Micro Controller Abstraction Layer)

DIO

UART (Universal Asynchronous Reciever Transmitter Module)

I2C (Two Wire Interface Module)

Project Description

New Enrollment Process

• When a new Employee is to be enrolled in the system, he must choose to be enrolled using an option represented by LCD Module.

• To be enrolled he will insert a unique ID which will be saved in the EEPROM Module.

• Employee will be asked to insert his Finger Print and guided through the process with the help of LCD messages.

• The Finger Print will be connected to his ID in EEPROM.

Login Process

• Employee should insert his ID first, and it will be searched with through EEPROM Data base.

• If Employee ID is Found he will be ordered to enter his finger print and a match is carried.

• If a match is found, the system will register the login time using the RTC Module to get real time.

Project Machine State Design