Discover three creative DIY projects using everyday household items in this tutorial. Learn how to make a pen LED flashlight, ...

A Delhi schoolgirl, Mahi Malhani, developed TRASHbot, an AI-powered robot to tackle litter. Inspired by a visit to Sundar ...

It's amazing what you can do with an ESP32 (or two).

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

The Mango Flange Karaoke Bar is a new VRChat world created by longtime coder and virtual world enthusiast Enverex. Built as a focused and optimized karaoke space, it brings together his background in ...

Learn how to repurpose your spare ESP32 boards into cost-effective presence detection sensors using the Tommy Sense ...

Like many of us, [Tim]’s seen online videos of circuit sculptures containing illuminated LED filaments. Unlike most of us, however, he went a step further by using graph theory to design glowing ...

CCFL backlights are the most common backlight technology and are used in displays ranging from 5.7 to 23 in. or more diagonal. They can have from one to 24 or more lamps mounted along the edge of the ...

Red light therapy has long been used to reduce inflammation and improve skin texture, which is why LED devices are having a moment—you can reap some of the benefits without booking a professional ...

Nasha Addarich Martínez Head of Editorial Initiatives and Data Journalism Nasha is the Head of Editorial Initiatives and Data Journalism at CNET. She leads the development and execution of proprietary ...

Lasers, LEDs and light sources are devices that create light. LEDs (light emitting diodes) convert an electrical current into light using spontaneous emission in optically active semiconductors.