My issue was a bit different, I’m controlling this over ESPHome / UART:
If I remember correctly, the unit defaults to turning on in COOL mode. I turned it on using an automation (which sets climate.turn_on then a 1 hour timer before turning it off) to turn it on (expecting it to remember the previous mode) and it correctly turned on COOL. Then a few days later it was cold out and I manually used the heat mode. After that, I used the automation again and it while I would have assumed it would have gone to the previous mode, it turned on the COOL mode.
So it seems like it’s defaulting to COOL regardless of previous run mode. It’s not the end of the world, just not what I would have expected.
Of course I can’t find the exact reference now, but it was a link to a .txt file in one of the Github Issues/PRs to either the Midea AC LAN repo or its active fork(s)
I was just hoping the UART protocol would provide some hints to magic byte values in the XYE protocol, but the protocol appears totally different.
XYE does appear to be pretty limited, as would be expected with its intended use with the Central Controllers. The commercial devices that adapt XYE to Modbus/BACNet/etc don’t appear to offer any settings/sensor values that we don’t already know based on the codeberg.org repo.
I have a Bosch Climate 5000 system, currently using SWLF01 to control the ductless head and SmartIR/Broadlink to control the ducted. I am looking to add FollowMe to the ducted configuration for better temperature control.
Is it possible to interface a second SWLF01 to the ducted unit to replace the SmartIR/Broadlink setup? I have CN9 XYE, CN40 4-wire controller and CN10 Display Board/Wire controller interfaces available.
I’m not clear on what your goal is, however. If you have an IR transmitter for the ducted unit (aimed at the built-in receiver on the CN10 display board), you could just send the follow me temp through that.
If that transmitter setup doesn’t support arbitrary IR codes, an ESP8266 or ESP32 with an IR LED and ESPHome’s IR Climate component can send Midea IR commands including follow me.
I wasn’t aware of the IR Climate component or Follow Me capability but I set this up with an ESP 32/IR LED tied to a room temp sensor. Early days, but it appears to control the room temperature much better than my old setup (SmartIR/Broadlink RM Mini providing control, with temperature sensed by the unit itself). This is despite testing with various temperature compensation DIP switch settings.