LCD 16x2 SHIELD Xa ARDUINO, Keypad Shield Blue Backlight For Arduino Robot LCD 1602 Board, This is a basic 16 character by 2 line black-on-green display. Utilizes the extremely common HD44780 parallel interface chipset. Interface code is freely available. Blue Backlight with white words. Uses 4 Bit Arduino LCD Library. Size:8cm x 5.9cm - 3.15inch x 2.32inch.