nostr:npub1dm5seg0ukscz6zvhrfe6497ka2xdsqwt57nfnvuxu9pxkv25sngsdw5sqe does it pause because there’s a sensor to read, or just to ensure there’s no momentum and slip?

Asking because I have a similar device I’ve always wanted to build for a family member’s business (for something more like hose than wire), but I assumed I’d use a button, a read out, and let them manually stop at length.