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Author Topic: Looking for a matrix keypad less than 2.2" tall  (Read 271 times)
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SouthernAtHeart
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« on: February 06, 2011, 06:40:45 pm »
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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?
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baum
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« Reply #1 on: February 11, 2011, 03:43:26 pm »
 Bigger Bigger Smaller Smaller Reset Reset
This http://www.sparkfun.com/products/8653 one is about 2.5", but that includes all the pins and casings. Good Luck!
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I'm not kidding. If I am asking a question whose answer is found within the concerned product's datasheet, shame on me. If I am answering a similar question, shame on you!

CrossRoads
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« Reply #2 on: February 11, 2011, 09:14:42 pm »
 Bigger Bigger Smaller Smaller Reset Reset
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.
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