Membrane 3x4 Matrix Keypad + extras - 3x4
PRODUCT ID: 419
$3.95
| QTY | DISCOUNT |
| 1-9 | $3.95 |
| 10-99 | $3.56 |
| 100+ | $3.16 |
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Description-
Description
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. -
Technical Details+
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
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Learn+
Learn
Punch up your project with a matrix keypadWith a few parts, you can make a super soundboard with the Adafruit Grand Central
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Explore strange new ways to count in code.
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Distributors+
See our Distributors page for a complete list of distributors.
