Long circuit board with a box connector on the left, some mosfets, power plugs, Ethernet jack and socket strips for an ESP32 module. The silkscreen contains a picture of my lynx character Cato with a speech bubble saying "Give that old display a new life!"

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   Cato (cato@chaosfurs.social)'s status on Saturday, 15-Feb-2025 08:18:52 JST Cato

   Drop-in replacement for an LED display controller :3 I have 5 of those displays. Funnily enough, those were the first passenger information displays I ever owned, I got 4 of them after writing to transport operators all across Germany, and one recently from a friend. Back then, I designed a replacement controller with a simple Arduino Nano, which was my first custom PCB ever. That was around 10 years ago. About time to refresh those displays with something more modern!