Powering a custom Arduino compatible - 5V regulator or no 5V regulator?
I'm building a custom Arduino compatible with an ATMEGA328P.
Would it be better to get a 5V power supply that plugs into the wall to power the project and gives me a barrel jack, then connect that directly to the uC, or should I instead use something like a 9V power supply, then use a 7805 to regulate down to 5V?
I'm building a custom Arduino compatible with an ATMEGA328P.
Would it be better to get a 5V power supply that plugs into the wall to power the project and gives me a barrel jack, then connect that directly to the uC, or should I instead use something like a 9V power supply, then use a 7805 to regulate down to 5V?
