Keypad – 12 Button

A basic 12 button keypad for user input. The buttons are setup in a matrix format. This allows a microcontroller to ‘scan’ the 7 output pins to see which of the 12 buttons is being pressed.Check the examples below for correct pin-outs and such.Documents:DatasheetPIC HEX Pad TutorialArduino InstructableArduino Keypad LibraryAlarm System ProjectBildr Example