If you’ve scavenged some random keypads and want to reuse them in a project without the hassle of figuring out the pinouts, then [Cliff Biffle] has an interface module for you.The Keypad Go ...

Arduino-Keypad Module Connection Diagram: The connection of the keypad to the Arduino is shown in the (keypad-schematic.png) image. About. Contains sensor module examples with Arduino. These examples ...