Simracing LED Flag Indicator based on an Arduino Nano and an 8x8 WS2812 LED matrix. You can indicate flags, gear, pit limiter, or whatever you like.
If you like, you can put the diffusor cover on top. Frotn part with integrated diffusor comes soon.
Simhub or iFlag. I use Simhub ( https://www.simhubdash.com/ ). It works with almost all racing games and is super easy to use. It even comes with a tool to setup and flash your arduino.
You need more simracing parts? Hace a look: https://www.prusaprinters.org/social/10301-mistert/collections/63538
The author hasn't provided the model origin yet.