3/07/2018 LCD & Keypad Shield Quick start Guide | Electronics LCD & Keypad Shield Quick start Guide The 16x2 LLD And Kay pad Shield is very simple {0 use abacus if's fully compatible with the Arduino "LiguidCrystal® bray. You can initialism the LOD and display messages on it with just 2 few lines of cods, but | also gives you the Flexibility to do more advanced projects such as display menu rems and select them using the buttons.