How a Row-Column Matrix Works

[pixel5]

I can't embed it here because it's a flash object, but check out the animation on this page. It will help you understand how it works on a keyboard. http://www.howstuffworks.com/lcd4.htm

It's like Battleship. B5 = Row B Column 5.


Thought this might be useful for someone getting into keyboard making.

[CPTBadAss]

In xwhatsit's beamspring usb thread, he does a good job of both showing his work and explaining what he did.  I think this and that thread would be excellent primers for creating a custom controller

[whiskytango]

I thought this one was pretty helpful too

http://pcbheaven.com/wikipages/How_Key_Matrices_Works/

[pixel5]

I thought this one was pretty helpful too

http://pcbheaven.com/wikipages/How_Key_Matrices_Works/

Awesome guide.

[StrikeEagleCC]

I thought this one was pretty helpful too

http://pcbheaven.com/wikipages/How_Key_Matrices_Works/

This one is my favorite.

I made a gif to show high-Z states and pull-up resistors in a matrix: see my sig. I'm open to input about how to improve it.

[agodinhost]

I thought this one was pretty helpful too

http://pcbheaven.com/wikipages/How_Key_Matrices_Works/

This one is classic!
Well know in the internet ...

[dorkvader]

That pcbheaven one is good, I haven't seed it before.
Here's the one I like te refer to:
http://www.dribin.org/dave/keyboard/one_html/