Any Support for Midea A/C?

aceindy · September 15, 2020, 7:19pm

Still no luck with my Olimpia Splended (also not working very hard on it)

Yup, also reading Telegram

Nope, that is the easiest part hehe

Since ReneKlootwijk’s project doesn’t use neither OSK102 nor OSK103 it will be irrelevant

panste · October 2, 2020, 6:11pm

Wonder if anyone can provide any info on how to add newer models to any of the existing add ons

Fraschi · October 4, 2020, 12:29pm

Any clue about the update with fan workaround?
I think that the problem is in the base command that triggers the fan mode, I can’t find the previous mentioned code with chinese comments.
I’ve also tried to grab data from the android apps (Nethome Plus and Midea Air) but I can’t understand the query-response. It seems that there is a plain-text query to mapp.appsmb.com with: applianceId, src, format, sign, stamp, language, sessionId, funId, order. I think that the command is the latest one but I can’t decode/understand that and/or relate this tho the known base command.

Fraschi · October 4, 2020, 2:48pm

It seem’s that my modified lib solves the update-fan-issue in midea-ac-lib, now I’m trying to get it work in HA. here the repo https://github.com/fraschizzato/midea-ac-lib

UPDATE: moved to LAN readings with fake cloud, the midea-ac-lib modification made works on HA (to do that, I’ve directly modified the py file in hass venv) but after while I start getting the unauthorized message (too many connection by hour to the cloud).

gabriel.hahmann · October 8, 2020, 11:33pm

Hi @mac_zhou , hope you’re doing fine!

I just realized that when I restart HASS from the web interface I get the following errors:

Oct 08 20:27:35 microserver hass[26526]: Traceback (most recent call last):
Oct 08 20:27:35 microserver hass[26526]:   File "/srv/homeassistant/lib/python3.8/site-packages/homeassistant/helpers/entity.py", line 278, in async_update_ha_state
Oct 08 20:27:35 microserver hass[26526]:     await self.async_device_update()
Oct 08 20:27:35 microserver hass[26526]:   File "/srv/homeassistant/lib/python3.8/site-packages/homeassistant/helpers/entity.py", line 469, in async_device_update
Oct 08 20:27:35 microserver hass[26526]:     await self.async_update()  # type: ignore
Oct 08 20:27:35 microserver hass[26526]:   File "/home/homeassistant/.homeassistant/custom_components/midea_ac/climate.py", line 114, in async_update
Oct 08 20:27:35 microserver hass[26526]:     await self.hass.async_add_executor_job(self._device.refresh)
Oct 08 20:27:35 microserver hass[26526]:   File "/srv/homeassistant/lib/python3.8/site-packages/homeassistant/core.py", line 350, in async_add_executor_job
Oct 08 20:27:35 microserver hass[26526]:     task = self.loop.run_in_executor(None, target, *args)
Oct 08 20:27:35 microserver hass[26526]:   File "/usr/lib/python3.8/asyncio/base_events.py", line 775, in run_in_executor
Oct 08 20:27:35 microserver hass[26526]:     executor.submit(func, *args), loop=self)
Oct 08 20:27:35 microserver hass[26526]:   File "/usr/lib/python3.8/concurrent/futures/thread.py", line 179, in submit
Oct 08 20:27:35 microserver hass[26526]:     raise RuntimeError('cannot schedule new futures after shutdown')
Oct 08 20:27:35 microserver hass[26526]: RuntimeError: cannot schedule new futures after shutdown

Do you think you can take a look on that?
Thank you.

aqus555 · November 16, 2020, 10:59pm

Hi been trying to read through the 1.2 million posts here to add midea heatpump to home assistant and have a huge headache.
Can someone point me to the latest and easiest way to get this working

Thanks

ONIBAS · November 24, 2020, 3:39pm

Hi there,

Did spend a couple of hours trying to integrate my Midea AC with Home Assistant but it seems like I’m out of luck.

I’m using the WiFi Pen CE-SK103 and running the midea-discover command is returning my AC unit as “unsupported”.

INFO:msmart.cli:Midea Local Data 192.168.1.134 837000b8200f04015a5a0111a8007a80000000000000000000000000ba460000001d00000000000000000000000000003c5172d3d0a4df844ee8df64f035a7fe64e10262e80db9f1f6aa496389544fd6eca23a289a63df94c3329e3b9fec32def646686eec66b7b29f616b9c4bcbee4c55fd6e01d5cd6102e942d91d7c28c18790b13be000894715b606127e07c2fecff31443d17c3aac03a7656614ae1dca44458727958a779ee5e6fbb540f6db8302dfa542a14e63271e56d829714f7d5ba5
INFO:msmart.cli:Decrypt Reply: 192.168.1.134 8601a8c02c19000030303030303050303030303030305131353032444242354233343338303030300b6e65745f61635f333433380000000001000000040000000000ac00000000000000502dbb5b3438069fcd0300080103010000000000000000000000000000000000000000
INFO:msmart.lan:Couldn't connect with Device 192.168.1.134:6444
INFO:msmart.cli:*** Found a unsupported device - type: '0xac' - version: V3 - ip: 192.168.1.134 - port: 6444 - id: MY_ID - sn: MY_SERIAL - ssid: net_ac_3438

Still, I did install and configure the HA component found here https://github.com/mac-zhou/midea-ac-py and my unit is correctly listed on HA entities, but the AC state is wrong and sending commands don’t do anything.

Is there anything I can do to fix this or it’s simply not supported yet? Any extra information I could provide to help?

Thanks

aceindy · November 27, 2020, 8:29pm

Looks like it is finally working!
It is awaiting the pull-request into esphome
but you can already obtain it here

Thanks Mac-Zhou, ReneKlootwijk, SergeyDudanov, Fraschi for awesome collaboration.
(it already works, but development still ongoing to support more models and functions)

I’ve secured all info in a new topic here:

panste · November 27, 2020, 9:11pm

Great, ty all for you hard work. Can you please provide some info on how to test it ?? (download the repo and add it as custom component) ?

aceindy · November 27, 2020, 10:14pm

From Fraschi:
Easyest way to use ESP home integration is (assuming python and pip already installed):

pip install --upgrade git+https://github.com/dudanov/esphome.git@midea-climate-support

esphome yamlfile.yaml run

example yaml:

# Example configuration entry

esphome:
  name: mideahvac
  platform: ESP8266
  board: esp01_1m

wifi:
  ssid: "mywifissid"
  password: "mywifipassword!"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Midea-Hvac Fallback Hotspot"
    password: "53416ef6123"

captive_portal:
# Enable Home Assistant API
api:

ota:

# Disable logging over UART
logger:
  baud_rate: 0

uart:
  tx_pin: 1
  rx_pin: 3
  baud_rate: 9600

midea_dongle:

midea_ac:
  name: "Midea AC"
  beeper: true

see also:

https://easyeda.com/aceindy/midea-open-dongle

panste · November 28, 2020, 7:47am

Thank you very much

kokuo81 · December 12, 2020, 3:29pm

Sorry guys,
I feel I may need some more info on the development of this.
So, I’m actually using the USB Wifi for my Midea-like AC (it’s a Giatsu but the Midea integration works with it).
I managed to get the ID of my split (splits actually, as I got two) but most of the times it’s offline (also in the nethome plus app).
What I want to do is to get rid of the wifi dongle itself and use a CC2531 instead (I use another CC2531 as coordinator already).
I read a user said some months ago they managed to do it. Any info about this?
The CC2531 would be an extremely cheap and available alternative (it costs around 3.5€ at the moment).
What do you reckon?
Thanks!

aceindy · December 12, 2020, 3:38pm

https://easyeda.com/aceindy/midea-open-dongle

This uses a ESP01 dongle, over wifi;
So it doesn’t use cloud nor zigbee nor RF433

my ESP01 + voltage converter was a whopping €2.38

kokuo81 · December 12, 2020, 5:54pm

Hey @aceindy,
Thanks a lot for the info!

So, if I got this right, I should buy an ESP01 dongle AND a voltage converter.
Would something like this be what I need?
eap01

Or maybe you can share a link to get both items?

Thanks a lot!

aceindy · December 13, 2020, 7:37pm

@kokuo81
Oh, the esp01 alone was €2.81…sorry abt that…total was €4.35…
ESP8266 ESP-01 WIFI Transceiver Wireless Module With Adapter Module

And you can also go fancy by ordering the pcb’s made by Dudanov and Klootwijk (follow links on previous posts)

kokuo81 · December 13, 2020, 9:54pm

@aceindy Thanks a lot!

I’m very bad at components and stuff but I suppose this is the same and would work fine (the 3rd choice):

Also, how do I program it? Sorry for the questions but I’m really new to all this.

Whenever you confirm me, I’ll buy it

Thanks again!

aceindy · December 14, 2020, 7:06am

Hmm, I never managed to get the ESP01 into programming mode with that USB dongle;
I used this one: USB Serial Adapter CH340G 5V/3.3V USB to TTL-UART to program it.
And is how I connected it for programming:

And the AC itself doesn’t use USB (even though it uses an USB connector), so you cannot use the programmer adapter there either, you need the 5V/3.3V Adapter.
So mine looks like this (my A/C was both equipped with USB as well as header plug, so I could choose)

PS:If I understood Rene Klootwijk correctly, you can order them pre-assembled, have a look here

(I just did some reading on the USB serial port adapter, and it looks like you can use it for programming, but it requires some modifications:

Also available on YouTube

kokuo81 · December 14, 2020, 2:12pm

@aceindy Thanks a lot for all the info once again, hugely appreciated

So, to recap a bit:

Since I have two AC splits, I can buy two sets of the ones I posted in my previous comment + one extra ESP8266 to use as programmer.
I make one ESP8266 a programmer for the ESP-01.
I found another video explaining how to join the pins to make it a programmer (no need for a button to toggle, given the price of the board, I prefer to have an extra ESP8266 just for programming ): https://www.youtube.com/watch?v=PSczkB4wYec
Once I have the little “programmer” ESP8266 ready, I can connect it to the PC to program both ESP-01.
What will I need to do that? What tool (I’m on windows 10)? What file?
Once I’m done programming both ESP-01, since I do have a female USB plug in the AC (something like this: https://github.com/dudanov/midea-open-dongle/raw/main/images/2.png), I understand I can plug the ESP-01 into the ESP8266 (the original one, not the “programmer” one) and the ESP8266 into the female USB plug of my air conditioner.
At that point, I would need to configure it in Home assistant

As you can see, I still have doubts about the tool/files I need to use to program the ESP-01 and if I will indeed have to plug the whole thing (ESP-01+ESP8266) to the AC female USB plug.

Thank you once again for your patience and time (I will write a guide in ES and IT once everything is working fine on my end, I promise).

EDIT:
I’ve been reading the ESPHome guide and, if I got it right, that should actually answer my questions from above:

The tool to flash the ESP-01 is, in my case, the ESPHome plugin in Home Assistant itself.
What to flash in the ESP-01 comes directly from the configuration I use in ESPHome, that is basically pushed to the plugged USB by selecting the Upload option in the WebUI.

Am I right?

Thanks!

aceindy · December 14, 2020, 7:49pm

Erm…

Yes,
2 x ESP8266 Serial Wi-Fi Wireless ESP-01 Adapter Module 3.3V 5V
2 x ESP8266 ESP-01 Remote Serial Port (with the earlier posted modification for programming)
1 x ESP01 Programmer Adapter UART

Normally ‘programming’ would be done from the ESPHome add-on

But unfortunately, the MideaAC pull request did not make it into the main git repository yet.
So until it makes it into the ESPHome addon, you’ll have to compile the required binaries manually (I also used W10) and flash it on the com-port assigned to ESP8266 ESP-01 Remote Serial Port
An example of the configuration yaml you find here.

cd c:\workshop\esphome

pip install esphome
pip install esphomeflasher
pip install --upgrade git+https://github.com/dudanov/esphome.git@midea-climate-support

esphome mideahvac.yaml wizard
esphome mideahvac.yaml compile

esphomeflasher

using the compiled C:\_workshop\esphome\mideahvac\.pioenvs\mideahvac\firmware.bin

Assuming you already installed python

aceindy · December 15, 2020, 8:14am

@kokuo81 do not use the usb male plug of the 8266, but use the voltage converter 3.3/5v…
(remember, the ac uses a usb connector, but is is not using the usb standard )