Membrane 3x4 Matrix Keypad + extras (3x4)

(3 Reviews)
Price:
Sale price £4
incl. VAT
excl. VAT
Stock:
Only 20 units left
Quantity:

Awesome Extras

Punch in your secret key into this numeric 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 tutorials 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.

Check out our detailed guide with wiring diagrams, libraries and example sketches for all sorts of matrix keypads.

Technical Details

  • 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

Check out our detailed guide with wiring diagrams, libraries and example sketches for all sorts of matrix keypads.

Payment & Accreditations

Payment methods
Amazon American Express Maestro Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Accreditations