I have a wall wart PS that puts on 5.5 volts at 2.5 a. I’m using the ps to supply 5 v to some incandescent lights and am wondering if I could use the 5.5 to power the Arduino on the 5 volt pin? Or will the extra 5.5v cause problems or blow the board? Or is there a chip I could use to drop the .5 v…

Max input voltage for Arduino 2560 on the 5v pin?

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