Open Interface by RemoteQTH.com ready 4U

   There is our new article, it is Open Interface. Middle box between your TRX and PC. The Interface is based on the Arduino open source K3NG CW keyer (link), USB to serial converters, USB audio codec and USB hub among all.

   There is a block diagram:

   The first seven pieces ready for you. More here.

   We used two of these interfaces during IARU HF contest 2014 as OL4HQ on 15m CW. We could not find any problem, no reset needed... BORE :)