With a little help from an Arduino mega, however ... It appears he uses a potentiometer for a rough regulation of the current going to the coils, doing the fine tuning in the code which can ...

Motorized linear potentiometers are a rare ... is controlled by an Arduino clone and a small motor driver. That’s just the hardware; the real trick here is the software. So far, [Jack] has ...

The Arduino board uses a potentiometer to control an RGB (common anode) LED, turning the knob will change the color of the ...