[GreenKeys] USB-teletype adapters (update #2)

[epvgk at limpoc.com]

On Fri, May 06, 2016 at 10:41:46PM -0500, Chris Elmquist wrote:
> I received my boards in the mail today.  I haven't set one up yet but they look great. Nice work Eric.  I will be using mine with Linux and most likely writing PERL or C code to talk to it.  I also plan to dabble with the code on the micro and have been an AVR developer since ATMEL invented them in the early 90s...  fun stuff.  Thanks again for the nice job on the boards.
> 
> Chris N0JCF

Awesome, please contribute improvements and don't judge my code too harshly. :) 
It's a 32u2 and it's only half full.