As I have mentioned previously I have been been gradually Home Assistant-ifying my home. Of course, part of that means having a some control panels around. I have tried an old tablet, but was not really happy with the results. At some point I leaned about the so-called “Cheap Yellow Display” (CYD). This is a small TFT display bolted directly to an ESP32 microcontroller.

There are a few things that make this interesting: