Print the adapter. Remove 2 pins from a pcb header connector and solder two wires to it. One for ground (GND) and one for voltage (VCC). Insert the wires into the holes on the top of the adapter. GND and VCC are marked on the sides of the adapter. Cut the pins at the output of the adapter. You now have 3.3V at your disposal.
Although I have used this adapter myself, I disclaim any responsibility for any damage caused to the board.
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