båd hypotese Rafflesia Arnoldi serial rgb led etc Glæd dig Ambitiøs
How to control WS2811 RGB LED with Arduino - Hackster.io
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Nooelec - 25pc 12mm Diffused RGB LED Pixels 5V WS2801 Drivers Waterproof Addressable Color
Serial 8×8 RGB LED Matrix Module for Arduino | ArduinoDev.com
Amazon.com: Taidacent 12V TTL Serial Port Full-Color Light Strip Controller with Terminal Block WS2812B 5050 RGB LED Strip Control Serial Port Programmable RGB Controller : Tools & Home Improvement
Shubham Pandiya RGB LED color select via Serial Input | Tinkercad