Keypad, 3×4 Matrix, 12 Button

(2 customer reviews)

£4.50 inc VAT

Availability: 3 in stock

Brand: AdaFruit
Part Number: 3845
Barcode: 0
SKU: PPCOM-14662 Categories: , Tags: ,
Share on facebook
Share on twitter
Share on linkedin
Share on facebook
Share on twitter
Share on linkedin

Keypad, 3×4 Matrix, 12 Button

This is a basic 12 button keypad that has been designed for easy user input and functionality. The buttons are set up in a matrix format. This allows a microcontroller to ‘scan’ the 7 output pins to see which of the 12 buttons is being pressed.

Each of the keypad’s 12 buttons has been labeled 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, *, and # and has been formatted to into the same layout as a telephone keypad with each keypress resistance ranging between 10 and 150 Ohms. We’ve also made sure to create an updated pin-out for this keypad since it has been changed from the previous version. The pin-out can be found in the Documents tab above.

Keypad Schematic:

Keypad, 3×4 Matrix, 12 Button Schematic

 

 

2 reviews for Keypad, 3×4 Matrix, 12 Button

  1. Andy Dillo

    Well made keypad at a competitive priceSimple to interface to my current Arduino project.

  2. Terry

    I bought some of these keypads from ProtoPic as they were cheaper than anywhere else (including eBay…). I was pleased to discover that I got a really good quality product that is built solidly and performs excellently. Thanks 🙂

Add a review

You may also like…

Scroll to Top