This project demonstrates a low-cost intelligent traffic signal system using Arduino and ultrasonic sensors to reduce congestion caused by fixed-timer traffic lights. Four HC-SR04 sensors detect ...

The new approach to search for light dark matter introduced by this research team could soon be refined further and applied in real experiments. This recent study could also inspire other particle and ...

Photoplethysmography (PPG) is an optical sensing technique that measures blood volume changes and underpins devices ranging from hospital-grade pulse oximeters to consumer wearables that track heart ...

More light sensors to measure light pollution and help protect dark skies across parts of Cumbria are set to be installed. The first of two thermal energy storage system meters were fitted this month ...

TOKYO, Nov. 17, 2025 /PRNewswire/ -- SwitchBot, a leading provider of AI-enabled embodied home robotics systems, today officially launched its brand-new battery-powered Presence Sensor, equipped with ...

A global team of experts from academia and industry has joined forces in a landmark 'Consensus Statement' on next-generation photodetectors based on emerging light-responsive materials, which could ...

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 ...

Scientists have developed a fully transparent skin sensor that accurately measures UV radiation, detecting light and converting it to electrical signals. So when the Sun's rays reach damaging levels, ...

When you're boarding a plane or going somewhere where your phone's wireless signals need to be completely disabled, there's a single toggle to make this faster and easier — airplane mode. It turns off ...

Bats are nocturnal hunters and use echolocation to orient themselves by emitting high-frequency ultrasonic sounds in rapid succession and evaluating the calls' reflections. Yet, they have retained a ...

What just happened? Researchers at University College London have developed a new type of solar cell capable of efficiently generating power from indoor light, a breakthrough that could reduce ...