I have had one of these in my track car for years but now that my wife is tracking she wanted a little visual indicator so she would push the car harder to redline. I got a 3D scanner so I went ahead and made it fit the dash a little better this time. I posted the code on GitHub.

It uses a eap32 to passively capture canbus data. The LEDs are configured to start at 3500 and scale to redline. uses standard esp32-s3, canbus adaptor and generic ws2812b led board

if there is interest I could post a few on marketplace but with the tarrifs I have to use dev boards and it bumps the price up to almost 100 $

github
https://github.com/MrBlahhhh/esp32-c...ws2812b-espnow