4x4 Membrane Matrix Keypad 16-Key Switch Module for Arduino & Raspberry Pi

Compact and practical, this 4x4 membrane matrix keypad brings a slim, professional input surface to your projects. The module features 16 soft-touch buttons in a standard matrix layout providing a full alphanumeric range (0-9, A-D, *, #), making it ideal for password panels, menu navigation, calculator builds and robotics controls. With an adhesive backing and ultra-thin membrane design you can mount it on any flat surface or enclosure, and a standard 8-pin female header (2.54 mm pitch) offers a plug-and-play interface for breadboards and jumper wires without soldering. The sealed surface resists dust and light moisture and the switches are built to withstand thousands of presses, delivering reliable input for Arduino, Raspberry Pi and other microcontroller applications.