Many new cars have proximity sensors that beep with increasing frequency when you back toward solid objects ... in a trailer-hitch receiver or on a car's bumper. Systems typically use a video ...

[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.

Whether you’re after added peace of mind during close-quarters maneuvering of your car or truck ... Radar sensors tie into the system, providing audible proximity alerts and an on-screen ...

[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.