Making an arduino clone circuit which drops the auto power select circuit and replaces it with a simple SPDT switch.Now the question is about switching powering pre FTDI chip or post FTDI chip, in other words is there any reason that anyone can think of that the external power circuit needs to power the FTDI chip, assuming the FTDI chip will always be powered by the USB when it is plugged in my circuit.The switch only decides whether the ATMEGA is powered by external power jack or USB.
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