Originally Posted by WendoNZ
Do all the ESCs on your quad look identical to the pictures you posted, or d the original 3 look different?
They all look identical until you look at numbers on the chips. In particular, some have the Atmel 8AU and some the Atmel 16AU. I understood that to be a speed rating, and that 8s will often run at 16 but some won't, but that's about as far as I really understand them. I work in the software industry, so I've been looking at the source code (and enjoying it), but I'm a rank amatuer when it comes to electronics. I can wire a house, but I wouldn't know an external oscillator from an extroverted ocelot.
Edit: The FETs all look the same to the naked eye, but the pattern of which legs are bridged is not consistent from one ESC to the next.