The ESP can be either powered by USB or it can be powered by direct voltage in. Most electronics are taking in AC and converting it to DC so it will run. There's two types of voltages out there: AC and DCAC is what's in the wall at your house. DC is pretty much everything else that needs to run.
In this episode of Syntax, Wes and Scott talk through an introduction to electronics that you can do in your own home with microcontrollers.
Show Notes
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