Assembling the USB Power Gauge is pretty simple. Just solder the male and female USB connectors on either end.
Solder the female connector.This connector goes on the end marked "Device". Be sure to solder all pins, as well as the mounting tabs for a secure connection.
Solder the male connectorThis goes on the end marked "Computer". Be sure to solder all pins, as well as the mounting tabs for a secure connection.
Optionally, the USB Power Gauge can also be spliced right into a cable for a more compact package without all the connectors.
Cut and strip the cableTrim back the outer insulation and foil shield. Then strip and tin each of the 4 inner wires.
Wire in-lineSolder the cut and stripped cable ends to the board - taking care to assure that the wire positions correspond exactly to the pins on the connectors.
Caution: Standard USB color coding is shown in the diagram on the left. But it is best to verify conductivity with a multimeter because your cable may vary.
Some 1/2" clear shrink-wrap tubing can be used to protect your wiring while still allowing you to see the indicator LEDs.