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The USB chip uses almost as much power as the Flight MCU! Isn that wasteful?

April 26, 2017chip flight mcu power USB uses wasteful

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The USB chip uses almost as much power as the Flight MCU! Isn that wasteful?

1 Answer

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The USB interface is designed so that it is only powered when connected to an external host (e.g. a laptop PC). At all other times the USB interface consumes no power.