That’s because brushless DC motors require carefully timed signals used in a process called Electronic Speed Control (ESC). [Fileark] built and ESC using an Arduino and has a couple of posts ...

[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor ... provide all that is needed to read the encoder, control the motor rotation and listen on the ‘stepper ...

Speed control ... Full 4 quadrant control can be achieved with brushless motors using only hall sensors. A DC tacho or encoder can be optionally used with the DC motor for tighter feedback loops ...

This Design Idea combines a simple ISA-bus-resident interface circuit; a garden-variety PC; a high-resolution optical shaft encoder; and a PWM-controlled, 0.05-hp, brushed, permanent-magnet dc motor ...

Related to my search for reduced motor noise (and thanks to all who have made suggestions ... Imagine my joy when I came across Design notes on precision phase-locked speed control for DC motors, and ...