4×4 16-Key Matrix Membrane Keypad Switch
Slim 4×4 matrix membrane keypad (16 keys) for Arduino, ESP, and embedded projects—flexible, durable, and easy to interface.
Original price was: 79.50$.69.00$Current price is: 69.00$.
5 in stock
Product Description
The 4×4 16-Key Matrix Membrane Keypad Switch is a thin, flexible input device designed for numeric and function input in Arduino, ESP8266/ESP32, Raspberry Pi, and other embedded systems. It uses a matrix configuration (4 rows × 4 columns), requiring only 8 GPIO pins for full functionality.
With an adhesive backing, this keypad mounts easily on panels or enclosures. It’s ideal for password locks, access control, calculators, menu navigation, and DIY electronics projects.
