I just learned that Arduino Uno R3 microcontrollers DC output ~5 volts, I tested mine and saw it was 4v. I need to get up to 12v, I know that there are step-up and step-down circuits that can do this but I can only find ones that go from 12v dc down to 4v dc. Does anyone know a way to get 4v dc up t…

How can you turn 4v dc into 12v dc

hammy November 27, 2021, 4:22pm 8

Or maybe google using a transistor as a switch

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