I think this is what you are looking for:
http://www.retronicdesign.com/en/
On Sun, 11 Sep 2016 14:57:16 -0700 (PDT), Cameron Kaiser
<spec...@floodgap.com> wrote:
I've seen plenty of examples of adapters to use a vintage joystick
with
a modern computer.
I'd like the opposite - to use a USB controller with a vintage
computer
(Atari compatible - for example ZX Spectrum, Commodore 64). Does
anyone
know of an adapter or a homebrew project?
Since these are digital joysticks, I imagine hooking one up to
something
like a Pocket CHIP or RPi and then using the GPIO lines to switch
current
(connected to, say, a 4066 or similar) should work.