Flexible membrane 3 X 4 keyboard

Flexible membrane 3 X 4 keyboard

Flexible membrane 3 X 4 keyboard

ADA 419


A keyboard matrix 12 ideal keys to achieve a digicode Arduino-based.

Guarantee of quality This product is an official product of the brand Adafruit

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This keyboard has 12 keys arranged according to the matrix of phones on a 3 X 4 grid. It is made with a thin, flexible membrane and with a support stickers on the back, simply remove the protective film to hang it anywhere. The keys are connected by a matrix, so just 7 pins of a microcontroller to use it (3 columns and 4 rows)

A 7 connector pins Male/Male is provided to easily use it on a breadboard.


  • Weight: 7.5 grams
  • Dimensions: 70mm x 77mm x 1 mm (2.75 "x 3" x 0.035")
  • Cable and connector length: 85mm
  • Connector: 7 female pins on 2.54 mm pitch



Arduino library: playground.arduino.cc/Code/Keypad


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