The ESP32 S3 Super Mini delivers dual-core processing up to 240 MHz for just $4. Build compact AI and IoT projects with built ...

Build a tiny ESP32 OLED keychain with a 1.3-inch display and custom 3D-printed enclosure. Wire the ESP32 S3 and program it ...

As our beauty editor, I’m often asked by my friends about LED face masks. Do they actually work? The short answer is yes, but there are some caveats. These devices use various wavelengths, with red ...

There are some projects that seem at first sight to be easy, but anyone who tries them finds a whole heap of unexpected problems and turns to the off-the-shelf device. PCB antennas for example, or ...

The energy-efficient LED bulbs now commonplace in American homes, schools, and offices could carry hidden health risks, according to a neuroscientist who is sounding the alarm over their potential ...

Keeping up with new TV tech isn’t easy. Every few years, shoppers see new marketing jargon for features that companies promise will provide impressive improvements but often don’t live up to the hype.

A new study led by MIT researchers could drive the development of more energy-efficient digital displays—such as flat-screen TVs, augmented and virtual reality headsets, smartphone screens, medical ...

Scientists at the University of Cambridge have achieved what was once considered impossible by electrically powering insulating nanoparticles to create a completely new kind of LED. Using tiny organic ...

Create an account to access more content and features on IEEE Spectrum, including the ability to save articles to read later, download Spectrum Collections, and participate in conversations with ...

Basado en un entorno de desarrollo y código abierto, Arduino se ha convertido en una de las plataformas más utilizadas en educación para que los estudiantes aprendan programación y robótica a través ...

LED light strips are a fun and easy way to spruce up a room, adding pops of color to a media center, a wall or even under a bed, or just bringing much-needed lighting to a dark area under a cabinet.

It’s hard to believe that the first blue LED didn’t arrive until 1993. They look simple, but looks are deceiving (Fig. 1). 1. Image showing a blue InGaN-based LED with gold wire contacts (0.4 × 0.4 mm ...