Improvements upon the wonderful design of DatOnePrinterGuy:

1. Driver gear is scaled down to roughly 90% since the original had too much pressure between gear teeth, which significantly reduced torque.
2. Created space for all of the electronics in the base itself.

Photos provide insight on how to cram a Wemos d1 mini, 28BYJ-48 motor, ULN2003 driver board, USB cable and all other wiring. I've since increased the space in the base even further than what is seen in the photos.

Use the space around the motor to loop long wires. Cut the gap in the plug.stl with a knife or a file until you can slip in your USB cable of choice. Bonus points if you glue some pads to the bottom of the base.