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3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad
3×4 Membrane Keypad

EMS-00015-B

(Last updated) Jun 22, 2026

3×4 Membrane Keypad

Membrane switch keypad

The 3×4 12-Key Membrane Keypad is a compact matrix input device used with Arduino, ESP32, Raspberry Pi, and other microcontrollers. It has 12 buttons in a 4×3 telephone-style layout, reducing GPIO usage while allowing easy user input. It is commonly used in password systems, calculators, access control, and embedded projects.
Product Type Membrane Matrix Keypad
Key Layout 3×4 Matrix
Number of Keys 12
Operating Voltage 3V – 35V DC
Connector Type 7-pin Header