With a standard old HC-SR04 ultrasonic sensor, an audio module and a servo to drive a custom gauge needle he’s made a device which can warn people around you if they’re too close for comfort.

To supply targeting data for the launcher, an Arduino Uno uses an ultrasonic sensor pair mounted atop a servo. ... Most gyms are closed right now due to social distancing rules, ...

A “bat-like” sensor could allow British businesses to enforce social distancing in the workplace. Scottish start-up IMERAI has developed artificial intelligence that can map out the interior ...

If you have allergies than you've likely considered picking up an air quality sensor for you house at some point. However, a good air quality monitor will run you upwards of $290.