const int ledPin = 2; // On-board LED pin (GPIO 2) const int quickOn = 200; // Quick blink ON duration (ms) const int quickOff = 200; // Quick blink OFF duration (ms) const int longOn = 800; // Long ...

The ESP32 keeps finding new jobs in my house.

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

The LED on your Amazon Echo Speaker has a number of color settings that tell you what's going on with your device. Here's ...

Of all the flashing LED colors your Amazon Fire TV stick remote might display, the red light can be one of the easiest issues ...

You know how it is. You’ve got that new project running, and while it doesn’t consume much power, it also doesn’t give much indication of whether it’s functioning or just sitting there with a dead ...

Flickering LED tea lights are a friendly and safe alternative to having flaming little pots of wax situated around your home, but sometimes the flicker scheme leaves something to be desired. [Roger ...

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 is a Managing Editor for CNET, overseeing our sleep and wellness verticals. She is a nutrition, mental health, fitness and sleep science enthusiast. Her passion for mindful and holistic ...

Recently, ‘Liquid crystal display (LCD) vs. organic light-emitting diode (OLED) display: who wins?’ has become a topic of heated debate. In this review, we perform a systematic and comparative study ...

More than one-fifth of US electricity is used to power artificial lighting. Light-emitting diodes based on group III/nitride semiconductors are bringing about a revolution in energy-efficient lighting ...