SainSmart UNO, ATmega328p + SainSmart LCD Keypad Shield + SainSmart XBee Shield for Arduino UNO MEGA Duemilanove The SainSmart UNO is a microcontroller board based on the ATmega328 The SainSmart LCD Keypad shield module for Arduino Diecimila Duemilanove, UNO, MEGA1280, MEGA2560 board The SainSmart XBee Shield is a compliant solution designed to meet low-cost, low-power wireless sensor networks with special needs Buy them TOGETHER and get at the REDUCE price. It is a big bargain!!!