Membrane 3x4 Matrix Keypad
Membrane 3x4 Matrix Keypad
Punch in your secret key into this numeric matrix keypad. This keypad
has 12 buttons, arranged in a telephone-line 3x4 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.
Features:
- Dimensions: 69.2 x 85 x 76.3mm
- 7-pin 0.1" pitch connector
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