Arduino attendence logger

This is an attendance logger for every employee.
It can display the history of attendance log of employees.
But every employee must have their own RFID tag and identify with it.

Connection

Most of the parts are connected with Arduino Mega as SPI communication .
The one of the part is connected with Arduiono Mega as I2C communication.

There are 4 library he used.

1. Ethernet library for Web Server.
2. RTC library for getting the real time.
3. RFID library for reading identification.
4. SD card library for saving history.

For more information about this project. You just have to move the original post along the link below.
http://www.instructables.com/id/Arduino-attendence-logger/