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.

HomeKit motion sensors HomeKit-compatible motion sensors are handy ways to trigger actions for HomeKit devices. At the simplest level, they can detect someone entering a room and switch on lights.

If you’re looking for brightness, our best LED outdoor motion sensor light is the LEPOWER LED Security Light. This large, three-part motion sensor light has a range of up to 72 feet, though it ...

Let me introduce another simple microcontroller-based do-it-yourself circuit that detects motion and excites a light source in a flash. The “snooper” here is an ordinary passive infrared (PIR) motion ...

This renders CV-detection more vulnerable to false alarms, since any large change—a spinning ceiling fan, leaves blowing outside a window, a change in ambient lighting—can register as motion.

Safe sensing of large rotating objects is best done from a safe (large) distance and passive available-light optical methods are the obvious solution. Unless elaborate lens systems are used in front ...

By New Atlas September 08, 2015 The Fast bike light is equipped with 8 RGB LEDs, a Bluetooth Low Energy connection and a motion sensor View 3 Images View gallery - 3 images ...