Inductive sensors are non-contact proximity sensors that detect ferrous targets, ideally ones made of mild steel thicker than one millimeter. They consist of four major components: a ferrite core ...

Instead of measuring light, we measure the ambient voltage field on pin A5 and use it to detect if someone is too close to our Arduino. A5 is used as a “floating input”, but unfortunately it is very ...

Inductive displacement sensors are a big step up from proximity sensors, but mostly thanks to more electronics and processing. Instead of a binary output, the classic inductive displacement sensors ...

One example is the inductive proximity sensor IFRM 03 with a diameter of only 3 mm. It is available in various lengths starting at a mere 12 mm. Yet its miniature housing contains the complete ...

Proximity sensors generally detect objects at distances from 10 mm down to 2 mm. Dc versions respond more quickly than ac versions, because they can operate at upwards of 3,000 to 4,000 Hz.