If you need to measure a distance, it is tempting to reach for the ubiquitous ultrasonic module like an HC-SR04. These work well, and they are reasonably easy to use. However, they aren’t wit… ...

I’m working on a project involving the need to precisely move a tool based on the measured distance to an object. Okay, yeah, it’s a CNC mill. Anyway, I’d heard of time of fight s… ...

Two Apple veterans built a new lidar sensor—here’s how it works Aeva's lidar uses a continuous beam instead of discrete laser pulses. Timothy B. Lee – Oct 2, 2018 11:18 am | 60 ...

Here’s how it works. The Garmin Edge 705 bike GPS unit has cadence sensor features. ... The speed-only sensor determines the speed and distance of a trip based on the wheel circumference of a bike.

Hall effect sensors have been used for decades in computer technologies too. Honeywell produced the first Hall effect keyboards in the 1970s and ’80s, but the technology eventually fell out of ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new electronic sensor can remotely detect the beat of a human heart from up to 3 feet (1 ...

And thanks to the distance sensor, the wheelchair can avoid not only stationary obstacles, like chairs and desks, but also people. If a group, or an individual, is walking toward the chair, it ...

Lidar measures distance, while radar provides a precise estimate of velocity. This is a bit of an oversimplification, of course. ... But if the new sensor works as advertised, ...

iOS has a new eye-safety feature that will remind you to hold your iPhone a good distance away from your face. Here's how it works and how to set it up.