It’s an LED ring that can be controlled over a WiFi connection. His design is based on a combination of the ubiquitous ESP8266 WiFi chip and a NeoPixel ring from AdaFruit, so there are already ...

One such IoT devotee is [Sasa Karanovic], who writes in to tell us about his very impressive custom IoT LED dimmer based on the ESP8266. Rather than rely on a commercial lighting controller ...