Fit the FeatherWing/Feather/FeatherWing sandwich onto the pegs on the base as shown.

Loosely fit the three faders into their slots in the base as shown, then screw three M3 screws into the front of the base and into their respective threaded holes in the three faders.

Note: you can and should screw the base/fader screws in place before adding the walls, despite the fact that the walls are shown in this photo.

Encoder Prep

Screw on the spacers and nuts as shown. This will provide proper spacing to attach to the inside of the walls.

Mount Encoder

Attach the encoder from the inside of the printed enclosure as shown.

Power Plug

You'll provide 9VDC power to the Motor FeatherWing using a wall wart. Prep a DC jack with short wires as shown to connect to the terminals on the FeatherWing.

Push the plug through the enclosure and then fasten with the provided nut.

Connect Power

Mind the polarity and connect the DC power connector to the Motor FeatherWing's power terminals.


Slide the walls over the wiring and into the base. If you hadn't already screwed in the faders, do so now.

Connect Encoder

Plug the STEMMA QT cable from the Feather into the rotary encoder.

Cap It

Place the cap over the enclosure, then screw in the remaining three screws to connect the faders to the cap.

Encoder Knob

Place the knob over the encoder shaft, making sure to leave enough space between the knob and the enclosure for the push encoder shaft to travel when pressed.

Tighten the grub screw with a hex wrench.

Outside Connections

Plug in USB-C to the Feather and DC power. You are ready to code and use the Darth Faders.

Note the power switch on the Terminal Block FeatherWing which is used to turn on and off the Feather via its Enable pin.

This guide was first published on Oct 05, 2022. It was last updated on May 28, 2024.

This page (Assembly) was last updated on Mar 08, 2024.

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