LCD Keypad Shield

 The LCD Keypad Shield is an Arduino compatible boards, providing a user-friendly interface that allows users to display what they want to and make selections etc. it consists of a 1602 white character blue backlight LCD. The keypad consists of 5 keys select, up, right, down and left. To save digital IO usage, 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