We call them switches, but they’re also sensors. In fact, they only do the work of a switch while they can sense a magnetic field. They are capable of switching AC or DC at low and high voltages ...

He built this set of no-contact limit switches using a hall effect sensor. The small black package ... but he needed to add more parts to get both working. In the lower left corner of the ...

The technology that will supposedly be utilized by the Switch 2 controllers revolves around a Hall effect sensor—a device that detects magnetic fields. This contraption is used to avoid having ...