Description: Using an Arduino or a micro controller, we can generate cool-looking patterns with an led strip containing ...

Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as ...

Think about how easily you recognize a friend in a dimly lit room. Your eyes capture light, while your brain filters out ...

Ikea has launched a new motion-sensor LED night light in Europe. It runs on one AAA battery, detects movement within 3 metres and is currently available in select European countries for €2.99. UK and ...

Researchers have developed a highly sensitive light-based sensor that can detect extremely low concentrations of cancer biomarkers in the blood. The new technology could one day make it possible to ...

We may earn commission from links on this page, but we only recommend products we love. Promise. LED face masks have become the most popular at-home skincare tools—and for good reason. Red-light ...

IKEA has launched its new Gömpyssling LED light with sensor. It's a motion-activated light which automatically switches on when you open a cupboard or step into a space, then turns itself off after ...

This system uses a colour-changing LED (RGB LED/tri-colour LED) that switches to a new colour every 5 seconds. Simultaneously, the colour name is displayed on an OLED mini screen (SSD1306). This ...

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, ...