I'm going to start a simple blinky LED project that will be embedded in a hat. All my current Arduino stuff is the larger 5v system. However I can't seem to find any common small batteries that give 6-7v, and a 9v is going to be way to big. All the small coin batteries are ~3v. So I think my decisi…

Battery Power for Arduino Pro Mini - 3v3 or 5v?

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