A proximity sensor detects the ball and starts up a pair of 540 R/C motors, ... a lot of pictures and step-by-step instructions so that you, too, can determine how far away your target is, ...

So, with just two cheap modules, you can build a laser proximity sensor—whether it is the thru-beam type or the reflective type. But I will not go into the build ideas as there are countless tutorials ...

Many types of capacitive and inductive proximity switches work well in a non-contact manner for distances of about 40mm or less, especially if the sensor and target can be mechanically configured to ...

The sensor shown here is essentially two plates mounted side-by-side, attached to an Arduino Nano using the Capacitor library which uses just two pins, one digital and one analog.

While adding a sensor inevitably increases the cost of each round, Hafften argued that using small arms ammo to take out drones that might cost an adversary as little as a few hundred dollars is ...

Elliptic Labs’ AI Virtual Proximity Sensor detects when a user holds their phone up to their ear during a call, allowing the smartphone to turn off its display and disable its screen’s touch ...