Have any others used a diode like the MC78M05CDTG to protect an Arduino from reverse voltage?
I am creating a board that has a 12v 5 amp power supply to control various LEDs. I am going to place a voltage regulator (7805) in line to the arduino to bring it down to 5v. I want to protect the Arduino from all the other power connections and in case I'm an idoit.
Am I over thinking this setup?