I’d rather not draw that detail by hand for each button
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Of course, those characters require a font with deep Unicode support
The map() function flips the sense of the analog voltage coming from the pedal
Those are 1% resistors, chosen from the heap for being pretty close to what I needed
The setpoint current has only a vague relation to the resulting motor speed
That’s easier than hiding the setscrew
Under these conditions the speed ratio works out to 10.93