I just tried it for a heck of it, running Leonardo and Mega on the same PC, from 2 different USB ports. And it worked. I was most amazed. Downloaded Blink sketch to both of them. Obviously I needed to change Port and Board settings in IDE, but that was all. I used 1.0.5-r2 IDE. Nice to know.

Nifty Success: Running Leonardo & Mega Together on the Same PC

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