Light sensors often use an infrared LED as a light source. Infrared LEDs have a greater intensity than LEDs that emit visible light. And when infrared photodiodes are used the sensors are relatively ...

Presence/motion sensors are one of the best ways to make automations feel more natural, but most of them run on batteries and eventually have to be swapped. That’s one of the main reasons I really ...

Ambient light sensors (ALSs) are photodetectors that approximate the human eye’s response to light intensity under a variety of lighting conditions and through different attenuation materials. They’re ...

For now, there's no reason for concern, but that could change in coming years. Kind of seems like yet another can’t really be used in the real world, attack. The attacker has to be sending specific ...

The ambient light sensors typically employed in smart devices for adjusting screen brightness could capture images of user interactions and could pose a unique privacy threat, according to researchers ...

That’s right, Apple might be putting ambient light sensors into future pairs of its earbuds. The reason? So they can be used as part of a health monitoring system. This comes from a (paywalled) ...