I know the specs say the Arduino Mega 2560 R3 has a recommended Voltage of 7-12vdc. But I have a 5 volt / 2.5a wall worth PS that was used to power a USB hub. Will that work? Or do I need to supply a min of 7 volts? Seems to me it should work with 5 v as when it's connected to a computer via USB it…

Can I power a 2560 with a 5v 2.5 wall wart PS?

slipstick May 1, 2018, 5:59pm 2

If you connect it to the correct 5V pin(s) it will work fine. If you connect it to the other inputs that need 7V then it won't.

Steve

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