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UsbTestCard ================== A little adapter to measure voltage and current as well as to probe the data signals on USB 2.0 lines. Bugs: #01 INA21x +/- Input lines swapped. -> Looks like negative voltage for current from vower supply to device -> Fix: Lift INA21x input pins and corresponding pcb pads. PCB trace are long enough for free-form-soldering in mid air.