Scott,
I cheated. I am using the buttons on my pendant to emulate the keyboard. It allowed me to have almost as many buttons as I wanted. Whenever the button is toggled it turns on a user led. Of coarse all this was done when that was the only thing I could do. I do use these leds for brains and macros.
I do not need the analog spindle out because I am mounting the pokeys in the pendant so ha ha back at ya!
The membrane switches could have been set up as a matrix but once again it was not available when I started the pendant. So once again, thanks alot.
As far as a picture goes. When I get it buttoned up and looking nice I will post one along with all part numbers.
Bill