Quote Originally Posted by Peri Helion View Post
@Swaggasauruz - your solution is what I would call a true hardware solution. It is mechanical and electrical. Hell, I would try it not because I want to multi-box still, but because it sounds like an awesome "Frankenstein's Monster" kind of project.

@schmonz - I think you are correct. We may think of a switch as a hardware only solution, but it is really just moving the software off of the PC to the external box. It still contains some programming and instruction sets to multiplex the signals. I have no idea if Blizz can detect it or not, but I think they would consider it a violation.

I am no expert, these are just my thoughts.
I considered still going with the Arduinos as it would be a fun project but I ended up going with a USB synchronous switch. As far as I understand it's not possible for Blizzard to differentiate between a keyboard sending an input or a switch sending an input from a keyboard - both events just look like a keypress from an HID.