This is a 16x2 LCD Keypad module for Arduino Diecimila Duemilanove, UNO, MEGA1280, MEGA2560 board. This shield for Arduino includes a 16x2 HD44780 White on Blue LCD module and a 5 push button keypad for menu selection and user interface programming. On-line Arduino tutorial and example code.Compatible with Arduino Uno, Mega, Duemilanove. Uses digital pins 4 - 10, and analog pin 0. The quality is guaranteed. It"s tested before shipment.