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  Membrane Matrix Keypad + Extras - 3x4
Membrane Matrix Keypad + Extras - 3x4
Membrane Matrix Keypad + Extras - 3x4


 
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Our Price: $3.99

Availability: Usually Ships in 1 to 2 Business Days
Product Code: MKAD25
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Description How To
 

Punch your secret key into this Numeric Membrane 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. Check the how-to tab for links to an Arduino library and example code.

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

Features
  • Weight: 7.5 grams
  • Keypad dimensions: 70mm x 77mm x 1mm (2.75" x 3" x 0.035")
  • Length of cable + connector: 85mm
  • 7-pin 0.1" pitch connector

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