xESP32-Faikout

On a similar note, I have some Daikin AC units, expensive ones and of course they didn’t come with wifi module which Daikin prices at 100+ Euro per module. After some searching around I found the Faikin [1] project and got one module to test for around 30 Euro and it works brilliantly for 1/3 of the price and provides even more functionality from what I’ve read with seamless HA integration. [1] https://github.com/revk/ESP32-Faikin

The project has a page about "wiring" [1] which also has a table with the needed parts to make your own cable (that's what I ended up doing). In my case it was more hassle to look up how to dismantle the unit to get to the motherboard (I recommend looking up your unit's service manual), attaching the module and routing the cable are trivial. [1] https://github.com/revk/ESP32-Faikin/wiki/Wiring

For Daikin, https://github.com/revk/ESP32-Faikin works well, and is tidier (and I think more featureful?) than an external IR port. Its existence is why I bought a Daikin!

great read. I have several Daikin split units and installed Faikins on them. https://github.com/revk/ESP32-Faikin Having the PCBs made, flashing them, sourcing the connectors,and installing them was a bit involved, but setting them up in home assistant was one of the best things this nerd has ever done. I wish there was an over-arching collective of hackers who would teach the principles, and help collaborate to decipher these protocols and help build software and microcontrollers to replace proprietary systems like the one Advantage Air has. I bet a simple ESP32 could handle this.