Midea branded AC’s with ESPhome (no cloud)

ESPHome
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1344

Hello,
I just bought a comfee MPPH-08CRN7.
I already have Problems with opening the ac.
Any advise on this?
I removed All screws, but with no luck.
I guess the Controll unit is some where closed to the Display and Buttons.
But I dont any way to get there without completly breaking the plastic.

1345

Awesome project! So if I understand it correctly I should buy this:
https://nl.aliexpress.com/item/1005008528226032.html
(Both the adaptor and the ESP-01)
And then program it via my USB serial adaptor. But my question is, where do I get the cable to connect it to the air conditioner? Especially the plug. Any idea how to find this on aliexpress? Thanks!

EDIT Ah it seems 4 regular dupont cables fit, right?

1346

do you know if this works with their central systems such as CENTRAL-60-HP-230B00-O ? I am trying to make this system work without thermostats (only temp/rh probes and using 24v relays). I have to switch system design because of changes to refrigerant requirements and availability. I like this Mr. Cool package but it doesn’t allow me to wire for fan speed because they are either controlled by the controller (basically their branded thermostat) OR by dip switches. I have two ESPhome nodes running controls on rheem hot water tanks and 1 other node that connects to probes via rs485 modbus. I would need to get another node to hook this up if this yaml/package would work with this mr. cool unit.

1347

Hi Steve,

I have a similar (different size, same control) vaillant fan coil.

Did you make it work? I have been doing some research, and see that there are some out of the box solutions for this equipment, from a commercial brand called Airzone. From their compatibility list, they advise to use their device with model number AZAI6WSCGM1. Anyone can check compatibilities here:

https://www.airzonecontrol.com/ib/en/projects/web-tools/compatibilities/aidoo/

However, this is quite expensive, compared to other ESP32/8266 solutions, although the HA integration seems quite user friendly.

I’d rather not spend so much money. Did you find a DIY solution?

Thanks and regards.