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Simple layout
5 μs output rise time in response to step input current
and over-current protection
3 Cell/4 Cell PC PIN Specification
Tire Width: 26mm
Membrane 4X4 Matrix Keypad + Extras 1 Channel Simple layoutThis Matrix Keypad 4 X 4 has 16 buttons, arranged in a telephone line 3x4 grid with a column of 4 characters (A, B, C, and D). The keys are connected into a matrix, hence only 8 microcontroller pins (4 columns and 4 rows) are required to scan the pad. 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 8
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