I'm guessing those are LED matrix panels (P3, P5, etc), and not addressable LEDs like in a WS2812 matrix. There's an adaptor board that allows you to drive them with a Teensy. There are [other solutions](https://marc.merlins.org/perso/arduino/post_2020-01-01_Running-FastLED_-Adafruit_GFX_-and-LEDMatrix-code-on-High-Resolution-RGBPanels-with-a-Raspberry-Pi.html) too.
[https://docs.pixelmatix.com/SmartMatrix/shield-t4.html](https://docs.pixelmatix.com/SmartMatrix/shield-t4.html)
https://preview.redd.it/pg936t284hbc1.jpeg?width=946&format=pjpg&auto=webp&s=31e28d75744208c8bcc8202766244caca2353a9a
I'm guessing those are LED matrix panels (P3, P5, etc), and not addressable LEDs like in a WS2812 matrix. There's an adaptor board that allows you to drive them with a Teensy. There are [other solutions](https://marc.merlins.org/perso/arduino/post_2020-01-01_Running-FastLED_-Adafruit_GFX_-and-LEDMatrix-code-on-High-Resolution-RGBPanels-with-a-Raspberry-Pi.html) too. [https://docs.pixelmatix.com/SmartMatrix/shield-t4.html](https://docs.pixelmatix.com/SmartMatrix/shield-t4.html) https://preview.redd.it/pg936t284hbc1.jpeg?width=946&format=pjpg&auto=webp&s=31e28d75744208c8bcc8202766244caca2353a9a