I designed a media control dial to replace the one that no longer works on an older keyboard. It is fairly small and runs on CircuitPython.
The KB2040 and a Stemma QT encoder are both parts from Adafruit, and made this build super quick and simple.
It also needs 4-M2X6 screws and 4 small rubber feet/bumpers for friction. The knob is friction fit and will be tough to remove once its on.
Aside from the standard libraries included in the KB2040 release of CircuitPython, You will also need adafruit_hid, adafruit_seesaw, and neopixel libraries which can be found in the CircuitPython Library bundle, or in the .zip folder included here.
I have included a boot.py file but don't use this unless you want to hide the CIRCUITPY folder.
The author marked this model as their own original creation.