Hello, I had a working setup with RPi3 directly to my WS2801 LEDstrip, but wanted to upgrade to WS2812b for increased leds/m. For this, additional hardware (Arduino Uno) is required, however this new setup is currently not working for me. Additional information/have tried so far: Used this YouTube guide by 'The Mad Scientist' as base: Using (original) Arduino Uno Using OPENELEC + HYPERION (unchanged from my previous setup with WS2801 leds (change needed?) ) Using a 60 led/m WS2812b ledstrip, 206 leds total Tried several drivers & setups in Hyperion, none of them do anything. Tried several sketches that are out there, one sketch gives me the orange start-up swirl. (So the Uno and the strip are wired up correctly). The other sketches dont really do anything. The internal grabber isn't showing anything either. Can see the Arduino when using the lsusb command. Arduino and USB-grabber not on same row of USB's on the Pi. My guess is that the connection between the Pi and the Arduino isn't working properly. I have looked up and tried several solutions posted on the forums here, on the Github page and several other pages, but none of them seem to have worked. Anyone knows how I can fix this? Many thanks!