4×3 12 Key Membrane Switch Keypad 4 by 3 Keyboard For Arduino AVR 4*3

KES 100.00

Out of stock

SKU: 1030 Category:


This keypad has 12 buttons, arranged in a telephone-line 3×4 grid. It’s made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins (3-columns and 4-rows) to scan through the pad. Check the tutorials tab for links to an Arduino library and example code.


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