The worst thing about a volume knob is that, having connected it to a computer, it might be wrong: if you’ve manually altered the volume settings somewhere else, the knob’s reading won’t be correct.

Brushless DC (BLDC) motors are standard fare in low-precision, speedy RC applications. The control schemes needed to run them slowly or precisely go deep into motor theory and might put these motors ...

Field oriented control is a mystery here – Park and Clarke transforms, plus other complicated stuff. Working though an example might clear things up a bit, but where to get a simple one. Enter the ...