ESP8266
Make an Astonishingly Minimalistic Multicolor LED Display for Pennies
A few months before Christmas, social media channels start filling with instructions about LEDs for home decoration. Popular software is WLED, a program that describes itself as: A fast and feature-rich implementation of an ESP8266/ESP32 webserver to control NeoPixel (WS2812B, WS2811, SK6812) LEDs or also SPI based chipsets like