The LCD Keypad Shield is developed for Arduino compatible boards, to provide a user-friendly interface that allows users to go through the menu and make the selections. It consists of a 1602 white character blue backlight LCD. The keypad consist of 5 keys - Select, Up, Right, Down and Left. To save the digital IO pins, the keypad interface uses only one ADC channel. The key value is read through a 5 stage voltage divider.