Hello, Im a beginner with arduino and I want to find out if there is an arduino module to power it with two sources. More specific I need to power arduino with an AC to DC adapter and with a 9V battery, so when a power outage happens the arduino will be powered by the 9V battery. Also is there ano…

Is there a module for arduino to power it with 2 power sources?

pwillard July 16, 2018, 8:02pm 6

It does. Its right there on the schematic for the UNO.

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