The prototype has a threshold set via potentiometer for convenience. The basic idea is that it’s possible to measure a capacitor’s capacitance using two microcontroller pins and the right ...

To get around the built-in short-circuit protection he needed a potentiometer to limit the current while allowing for adjustments. His first circuit used a resistor salvaged from an AT supply and ...

A combination of cheerfully-coloured 3D-printed components and RC parts have been employed to ... Impressive. A potentiometer attached to the speed controller means the pitch can be adjusted ...