Arduino Forum

Using Arduino => LEDs and Multiplexing => Topic started by: Flips on Apr 02, 2013, 09:59 pm

Title: Pushbutton matrix wanted!
Post by: Flips on Apr 02, 2013, 09:59 pm
Hi,
I am looking for a pushbutton matrix with at least 25 (more would be better) buttons.
Just ask Google for "Novation Launchpad". Something like that would be great, but I want 1. Just the buttons (with LEDs would be great but not necessary) and 2. Access to the raw data which can be processed by arduino or another uC.

If you know anything like that please let me know.
Thanks,
Flips
Title: Re: Pushbutton matrix wanted!
Post by: dc42 on Apr 02, 2013, 10:23 pm
You can get 4 x 4 keypad matrixes quite cheaply, and 5 x 4 ones for a little more. Perhaps 2 of those next to each other? Alternatively, how about using a touch screen instead?
Title: Re: Pushbutton matrix wanted!
Post by: CrossRoads on Apr 02, 2013, 10:30 pm
Scroll down to calculator keypad, 5x4 for $1.
http://www.surplussales.com/Switches/SWPushB-3.html
I have not seen 25 button versions anyplace.

Not rocket science to wire up 25 tactile switches/push buttons in a 5x5 matrix tho.
Decide what footprint you want to use.
http://www.digikey.com/product-search/en/switches/tactile-switches/1114206?k=tactile

Switches are as little as 10 cents each.