Hey, i already built 2 setups with ws2812b, raspberry pi 3 and the default hdmi switch/splitter. These 2 setups only used 1080p, but now i have a new shiny 4k tv (https://nogis.at/produkt/nogis-one-55-2?v=1 , without a tv tuner, so i dont have to pay for public tv in austria ) and a fire tv stick 4k to have something to view on. I now plan on integrating a hdmi switch, so i can switch between my computer and fire tv stick. My primary source is the fire tv stick, because for the pc i "only" have a r9 390 for which i have to buy a active displayport to hdmi 2.0 adapter https://www.amazon.de/gp/product/B017BQ8I54/ref=ox_sc_act_title_1?smid=A3JWKAKR8XB7XF&psc=1 I read the https://hyperion-project.org/threads/4k-hdr-capable-hdmi-splitter-supposedly.631/ thread, but i really dont understand which is the best splitter to choose. Since i dont have any fancy features like hdr , 10 bit, dolby vision etc l think i only need a simple 4k splitter, or am i wrong? I also read that i may need a splitter with 4k to 1080p downscale for the av converter, does somebody know if this is true? What do parts do you guys recommend for this "pipeline", does anybody have a similar setup and might want to post their parts? I think my setup is going to look like this: Fire TV Stick 4k -> HDMI Switch -> HDMI Splitter -> TV Computer -> R9 390 -> Club 3d DisplayPort -> Hdmi Converter -> -> Hdmi to AV -> AV -> USB -> Raspberry Pi 3 -> Arduino Nano -> WS2812B Thanks a lot for reading and helping me!