Punch in your secret key into this numeric matrix keypad. This keypad has 16 buttons, arranged in a 4×4 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 8 micro controller pins (4-columns and 4-rows) to scan through the pad.
- Ultra-thin design & adhesive backing provides easy integration to any project
- Excellent price-performance ratio
- Easy communication with any micro controller