The WS2812B is an LED that can emit light in red, green or blue as well as combinations of these colors and can display up to 16 million hues. It is controlled via a single pin using a few lines of code from the Arduino IDE, supported by the integrated controller within the LED. https://elecena.pl/product/25816068/333101-developer-boards-led-ring-rgb-24-leds-ws2812 2024-05-06 https://elecena.pl/product/25816068/333101-developer-boards-led-ring-rgb-24-leds-ws2812 2025-09-04