I recently found a remote that doesn't to the 30kHz modulation-- good luck to me controlling that with anything.

I live in New Zealand where we pretend that it’s never particularly cold or particularly hot. This might be a factor in how sloppy all the installs seem to be.

https://cloudfree.shop/product/ductless-hvac-wi-fi-module/

this USB ESP32 module which works out of the box on Midea-produced units (Carrier, Electrolux, Pioneer). I have a few units that are other generic brands which apparently are rebranded "Aux" brand units, so I re-flashed the ESP32 board above to work with Aux units by doing `brew install esphome` and then `esphome run auxminisplit.yaml --device /dev/tty.usbserial-210` where auxminisplit.yaml is https://gist.github.com/jasongill/35a13e458b6d109ca2bbefeab4...

That worked perfectly for me and should cover like 90% of all minisplits (Midea and Aux make a ton of brands units), let me know if that works for you.

Certainly could be the case. I've spent more time than I want to admit chasing down what was ultimately a loose wire.

For what it's worth, you can get a cheap ESP32 module and basic IR sensor modules for a few bucks on amazon [0]. As long as you have a basic USB <-> TLL/Serial adapter, you should be able to install ESPHome on that. The module that's on that particular board does not have a ton of room so keep the ESPHome config simple and to the point.

It's a few dozen lines of yaml total to get a basic IR signal decode/dump tool: [1]

[0]: https://www.amazon.com/HiLetgo-Infrared-Transmitter-Receiver...

[1]: https://esphome.io/guides/setting_up_rmt_devices#remote-sett...

However, the entire implementation is new, it's not a copy