• A small black numeric keypad module with blue and red buttons attached to a flexible white ribbon cable, shown on a white background with blue dimension labels and measurement lines.
  • A small black numeric keypad module with blue and red buttons attached to a flexible white ribbon cable, shown on a white background with blue dimension labels and measurement lines.
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Tinker Tailor

12 Key Membrane Keypad 4x3 Matrix

12 Key Membrane Keypad 4x3 Matrix

$4.95 CAD
$4.95 CAD
Promotion Épuisé
Frais d'expédition calculés à l'étape de paiement.

A slim 12-key membrane switch keypad in a 4x3 matrix layout. A simple, low-cost way to add number entry or button input to ESP32, Arduino and other microcontroller projects, such as PIN entry, menus, or control panels.

Ships next business day from Nova Scotia · 30-day returns · Questions? cmoz@tinkertailor.ca

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Details

  • Keys: 12 (4 rows x 3 columns)
  • Type: membrane switch matrix keypad
  • Works with: Arduino, ESP32, STM and other microcontrollers (scan the matrix with GPIO pins)
  • Operating temperature: -40C to +80C
  • Rated for low-voltage signal use (DC 35V max)

Each keypad is sold on its own. Libraries such as Keypad for Arduino make wiring and reading the matrix straightforward.