Finally, the knob on the right could reasonably be thought to be a rotary encoder, but it’s actually connected to a small DC motor.

Running a brushed motor in muddy or dusty environments takes a toll on controllers, with both heavy back EMF and high stall currents. This explains one of the challenge in Europe’s Hacky Race… ...

\[August 22, 2006\] To simplify the assembly of brushless dc motors common to industrial automation, the AEDB-9340 series 6-channel, optical incremental C-shaped encoder modules include a code ...