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Topic: Looking for a matrix keypad less than 2.2" tall (Read 522 times) previous topic - next topic

SouthernAtHeart

In browsing for a keypad, I see they're all a little bigger than will fit the face of my inclosure.  What about all these cell phone keypads. ...are they matrix like in their wiring?  Or does anyone know of a 'tiny' matrix 4x3 kekykpad?

baum

This http://www.sparkfun.com/products/8653 one is about 2.5", but that includes all the pins and casings. Good Luck!

CrossRoads

Why not wire up your own?
Use some of the little tactile switches, a piece of "island of holes" perfboard or similar, make as small as the switches will allow.
http://www.surplussales.com/Switches/SWPushB-3.html
The switches in the 2nd row will fit in 0.3" by 0.3" so you could easily fit 16 in a 1.6" x 1.2" rectangle.
Designing & building electrical circuits for over 25 years.  Screw Shield for Mega/Due/Uno,  Bobuino with ATMega1284P, & other '328P & '1284P creations & offerings at  my website.

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