We’re used to Hall effect devices as proximity sensors in mechanical systems ... devices provide a handy way to measure a static magnetic field. It’s something [mircemk] demonstrates, with ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors.

In this modern age, IR sensors are typically used in motion detectors and the best VR headsets. In the latter, they measure the depth of a space and your proximity to things in your environment.

The global position sensor market is estimated to reach USD 19.02 billion in 2030 from USD 13.25 billion in 2025, at a CAGR ...

If you don't want this feature, you're out of luck: proximity sensors are featured in every generation of iPhone going back to the year of release in 2007, and you can't turn off an iPhone ...