Any chance you have or could post pics of those custom HA controllers? Seeing custom interactables and how they integrate with ppl's environments are always suuuuper interesting
One-shotted LVGL UI (which I think it a bit ugly).
A Bluetooth gateway has a flat battery so 2 temperature sensors aren't getting relayed.
This is a Guition ESP32-S3-4848S040 board with this case https://makerworld.com/en/models/2859961-guition-4-esp32-s3-...
About $25 in total I think.
Currently it's mostly a case of building them to solve specific problems, and I don't really have much else I need. This one controls my temperature and lighting for when I don't want to pick up my phone.
I have physical switches for most things too.