16 digital input gamepad?

[MiL0]

yeah the LPD8 is really cheap (can get em on ebay for about 25 quid/euros) and provides a whole bunch of analogue/digital outputs for use in a custom diy midi controller as well as being great midi controllers in their own right.

The nice thing about them is that they're very easy to mod - all the solder points are easily accessible.

[Hiro]

uh... 16 input. ps2 buzz game controller.
i know a guy called harry hope on here has made one. he might be able to help you =] have a search

[derschaich]

12 regular digital inputs + 4 inputs from D-pad = 16 inputs.

look for my blog entry on the midi (fighter) clone [link in signature below] with a full tutorial on how to build this thing!