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 without ...

Stephen is an author at Android Police who covers how-to guides, features, and in-depth explainers on various topics. He joined the team in late 2021, bringing his strong technical background in ...

An overwhelming majority of handheld devices these days have ambient light sensors built into them. A large percentage of TVs and monitors do, too, and that proportion is growing. The sensors allow ...

LiDAR, short for light detection and ranging, sounds like the sort of made-up term you might find coming out of the mouth of an engineering officer on a fictional starship. It rolls off the tongue in ...

IR sensors rely on an emitter (IR LED) and a detector (photodiode or photoresistor) to measure infrared light and convert it ...

The new Thread- and Matter-enabled Aqara Motion and Light Sensor P2 came out Tuesday for use with HomeKit and other smart-home platforms, the company said. “In the rapidly expanding global market for ...

Posts from this topic will be added to your daily email digest and your homepage feed. The long-promised Thread sensor is finally here, but while there are some improvements, Matter’s shortcomings ...