LCD1602 character LCD, input and output expansion board, LCD Keypad Shield
LCD Keypad Shield input and output expansion board used with a 2-line 16-character LCD. The LCD features a contrast adjustment and backlight. A five key input, an analog port, and a reset button.
Occupancy digital port: PIN4 (DB4), 5 (DB5), 6 (DB6), 7 (DB7), 8 (RS), 9 (E), 10 (backlight control), the analog button port A0. This board is used in conjunction with Arduino: