Why Use A Sensor When A Pseudo-Sensor Will Do?

Usually, when you need to sense something in a project, the answers are straightforward. Want to sense air temperature? There’s a sensor for that. Particulate content in the air? There’…

Hackaday Prize 2023: Abuse A Reference Chip For A Cheap Instrument

A Rogowski coil is a device for measuring AC current that differs from a conventional current transformer in that it has no need to encircle the conductor whose current it measures. They’re b…

A Current Sensing Coil That’s Open Ended

One of the joys of writing for Hackaday comes in learning new things which even after a long engineering background haven’t yet come your way. So it is with the Rogowski coil, an AC current s…