Ambient light sensors can reveal your device activity. How big a threat is it? For now, there's no reason for concern, but that could change in coming years.

A well implemented ambient light optimiser will do nothing when the lights are off, but will raise brightness as the lights come on and gently adjust colours to combat the warmth or coolness of the ...

[mircemk] shows how to create a simple non-contact proximity sensor using little more than an Arduino Nano board, and a convenient software library intended to measure the value of capacitors. The … ...

After months of delay, the Xiaomi Smart Ceiling Light D20 is finally available to buy. Its standout feature is a built-in radar sensor that detects motion to automatically turn the light on or off ...

It takes just a moment to add a new app to your phone, but adding a sensor to a military radar display takes years. That’s why air-defense troops must bounce between multiple systems, wasting ...