Recently Viewed
Membrane Matrix Keypad  3x4
  Zoom
Membrane Matrix Keypad  3x4Membrane Matrix Keypad  3x4Membrane Matrix Keypad  3x4
Membrane Matrix Keypad  3x4Membrane Matrix Keypad  3x4

Membrane Matrix Keypad 3x4

  (1 Review)
Our Price:  £3.49 

Available Now:  

34 in stock, immediate despatch

SKU:  PPADA419
Part Number:  419
Brand:  Proto-PIC

Keypad to Serial ConverterKeypad to Serial Converter

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.

We sell this handy kit to convert the signal from the keypad to a simple serial signal reducing the number of required pins to 3

Dimensions:

  • 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

There is a very nice Matrix Keypad Arduino library that works great with this item. The only thing we suggest is to change the initialization code in the examples to this:

This will swap the * and # keys and also let you connect to the Arduino to match this image

Customers who bought this item also bought:


Customer Reviews
Average Rating (1 Review):  
Write a Review and share your opinions!

Rating:  
Simple, cheap and fast
Saturday, 14 January 2017  |  Samuel

Not many places sell keypads at this type of price and i was wary of how good it would be. But it came next day and has been working perfectly ever since

Was this helpful to you?  Yes  /  No

This review has not been appraised.

Related Products
Keypad to Serial Converter

Keypad to Serial Converter£4.99

  (1)