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Topic: USB + Power Jack at the same time...Is it possible? (Read 985 times) previous topic - next topic


Is it okay to connect an arduino uno r3 to a pc via the usb jack while it is connected to a power source (i.e. 9 volt battery) via the 2.1mm power jack?

What happens when i do so?(circuit wise)
Will the arduino get damaged/fried?
Will the pc get damaged/fried?

Thanks in advance
Merry Christmas and happy holidays everyone :)

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