[Coco] CoCo USB Serial Pak

[Don Barber]

Hi folks, you may remember me from past crazy projects like CoCo RSA. I 
made a thing and wanted to share it with the list; the CoCo USB Serial 
Pak: https://github.com/barberd/cocousbserial

This provides a direct USB connection to a modern PC, but recreates 
(with TTL logic) the 6551 ACIA interface used in the Deluxe RS-232 Pak, 
Direct Connect Modem Pak, and most other rs232 paks, so CoCo software 
written to use rs232 paks will work with this pak. No need to deal with 
parity, baud rate, cross-over null-modem pinouts, etc; the USB protocol 
takes care of all that. And its blazing fast.

Its open source so feel free to get your own boards made, modify the 
design, etc. Check out the above github link for schematics, PCB layout, 
a 3d rendering of the board, etc.

Please note this is NOT a USB Host; it does NOT support peripherals like 
mice and keyboards. It *is* a peripheral for a modern PC.

Thanks,

Don