[jonhohle]

This is amazingly cool. Did you consider putting a rotary encoder on the PCB to maintain local control over the speed?

[announcer4614]

That's exactly what I did :) and a convenient thing I realised afterwards is that the push-button function of the rotary encoder gives me the ability to turn the thing on and off with my foot!

[jonhohle]

(Facepalm) I looked at the pictures and skimmed, missing the encoder part. Awesome!