i opened the AC unit and see the OSK103. yikes.
just for fun, I plugged in a wifi usb adapter and that did not work. so the OSK103 does more than just a wifi adapter. is there a model number of the older adapter that you know works?
also, how did you get the ESP32 to work? could you please share a link? i found this link n it looks like a lot of work. Support for Midea A/C