How to power a Raspberry Pi is, on the surface, a remarkably simple affair. All Raspberry Pi boards are designed to use the same micro USB power socket as many smartphones. All you need is a spare USB adapter, and it will provide power to your Raspberry Pi.
That’s the basic requirement. Of course, this being a board for makers and hackers, there’s far more to it than that. Learning how to properly supply the right amount of power to your Raspberry Pi board is important as you start to create complex projects.
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