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Topic: safe to upload to externally powered Arduino Mega? (Read 699 times) previous topic - next topic

scottmcphee

If I leave a Mega externally powered all the time, connected to its barrel jack.... is it safe to plug the USB into my computer for uploading a new program to it?  Or does this create an unsafe 5V conflict with my computer's USB port, and/or stress the voltage selection circuitry on the Mega?

thanks

PaulS

The Mega switches power sources automatically. It is safe to have both connected at the same time.
The art of getting good answers lies in asking good questions.

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