Membrane 3x4 Matrix Keypad

5 pc(s)
PRO-02442

$3.25

This 12-button keypad provides a useful human interface component for microcontroller projects. It's made of a thin, flexible membrane material with an adhesive backing so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 7 microcontroller pins...
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This 12-button keypad provides a useful human interface component for microcontroller projects. It's made of a thin, flexible membrane material with an adhesive backing 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.

We include an 7-pin extra-long header strip so you can plug this into a breadboard with ease.

Features:

  • Ultra-thin design & adhesive backing provides easy integration to any project
  • Easy communication with any microcontroller
  • Maximum Rating: 24 VDC, 30 mA
  • Interface: 7-pin access to 3x4 matrix

Documents:

Dimensions:

  • Keypad dimensions: 70mm x 77mm x 1mm
  • Length of cable + connector: 85mm
  • Weight: 7.5 grams

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