The signal flow for HyperHDR can feel a little complicated if you haven't spent a lot of time routing video signals before. Here is a flow chart that explains how the setup works:

1. Video source (video game console, DVD player, streaming box, etc) to the HDMI splitter input
2. HDMI splitter output 1 to your display (TV, monitor, etc)
3. HDMI splitter output 2 to your USB HDMI capture card input
4. USB HDMI capture card via USB to your Raspberry Pi running the HyperHDR software
5. Raspberry Pi to the Pixel Trinkey via USB running the HyperHDR Arduino script
6. Pixel Trinkey to NeoPixels

AV Gear

There are two pieces of AV gear that you will need: an HDMI splitter and a USB HDMI capture card. There are recommended splitters and capture cards in this HyperHDR blog post that have been tested with HyperHDR.

For HDMI splitters, keep in mind that not all splitters support CEC control (ex: turning your TV on/off with your streaming box remote). If CEC control matters for your setup then make sure to get a splitter that supports it. On the Overview page, there is an HDMI splitter with CEC control and one without in the parts list.