Hi, im new here and not much experinced in these things. So im trying it here if someone would know, what could cause my problem or if there could be some solution. Everything was working fine for couple of months, but suddenly, when i try to conect Mega to a computer, it starts saying that USB de…

Arduino Mega 2560 - sudden unknown USB device

SurferTim May 22, 2014, 11:30am 2

Did you power the Mega by connecting a 5 volt supply to the 5v bus?

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