STMicroelectronics has introduced a $35 starter kit plus a new free-of-charge software algorithm to help engineers and hobbyists ...

New USB plugs will be able to handle ten times as much power, ... LED lights, many motors—run on DC power. And converting the AC power at an outlet to DC wastes a considerable amount of energy.

[Frank Herrmann] had an interesting idea to turn a geared DC motor into a servo motor assembly, but with a stepper motor-like interface.By stacking some small PCBs behind the motor body, it was ...