Introduction

The LCD Keypad Shield is compatible to arduino boards, to provide a user-friendly interface that allows users to display what they want to and make selections etc. it consists of a LCD1602 with white character blue backlight. The keypad consists of 5 keys selections, up, right, down and left. For saving the digital I/O pins, the keypad interface uses only one ADC channel(AD0). The key value is read through a 5 stage voltage divider.

Features

The keypad interface uses only one ADC channel

Potentiometer to control contrast of LCD