I Tested the Shark Cryo Glow LED Face Mask for a Full Year—Here’s What It Did for My Skin

I’ve tried nearly every popular LED face mask out there—but could this one top them all?
YouTube on MSN

DIY smartphone notification light: Repurpose old earphones with a simple LED hack!

Learn how to create a simple DIY LED notification light for your smartphone by repurposing an old earphone jack and an LED ...
Tech Xplore on MSN

LED method blocks ambient light to keep projection images sharp in bright environments

Projection mapping has the potential to create shared immersive experiences in exhibitions, commercial facilities, and public ...
Taste The Code on MSN

Add Bluetooth to Arduino and ESP8266 easily using RYB2340 module

I’ve been testing out the RYB2340 Bluetooth module, and it’s honestly one of the simplest ways I’ve found to add wireless ...
Science Daily

Harvard engineers build chip that can twist and control light in real time

Scientists at Harvard have built a miniature device that can twist and tune light in real time. By rotating two stacked ...
CNET

We Do the Math: How Much LED Lights Save on Energy Bills

Tyler has worked on, lived with and tested all types of smart home and security technology for over a dozen years, explaining the latest features, privacy tricks, and top recommendations. With degrees ...
Hackaday

Building An LC Meter With A Franklin Oscillator

Although it dates back to the early days of the Marconi Company in the 1920s, the Franklin oscillator has remained a ...