Hi @ceriel, sorry I didn’t answer before, I was on vacations, technology free 
So, it seems you are able to send commands correctly but not receive anything from the Haier unit. This is weird because it means the TX and RX line are correct.
The USB is just a connector, right? Like the one on the picture:
I show you my diagram in case it can helps in any way.
Tech free vacations are the best 
I used a cable (USB > micro-usb), that should work right?
Hi @ceriel, you mean you just cut the micro-usb part and soldered to the WeMo, right?
If that is the case it should work. Just check the Rx wemo cable part… It seems you are able to tx but not to Rx.
A post was split to a new topic: Help decode protocol of Ciat split system unit with OSK-102 wifi module
I’m sorry for the stupid question, but how\with what do I flash files from github as a firmware on d1 mini? I’ve never worked with esps before
Thanks!
Well, been trying for about a week on and off now, and can’t quite figure it out so far. I mean I got to the point where firmware is uploaded. Then I get this error:
Traceback (most recent call last):
File "c:\python38\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "c:\python38\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\Python38\Scripts\esphome.exe\__main__.py", line 9, in <module>
File "c:\python38\lib\site-packages\esphome\__main__.py", line 554, in main
return run_esphome(sys.argv)
File "c:\python38\lib\site-packages\esphome\__main__.py", line 541, in run_esphome
rc = POST_CONFIG_ACTIONS[args.command](args, config)
File "c:\python38\lib\site-packages\esphome\__main__.py", line 324, in command_run
return show_logs(config, args, port)
File "c:\python38\lib\site-packages\esphome\__main__.py", line 202, in show_logs
run_miniterm(config, port)
File "c:\python38\lib\site-packages\esphome\__main__.py", line 89, in run_miniterm
with serial.Serial(port, baudrate=baud_rate) as ser:
File "c:\python38\lib\site-packages\serial\serialwin32.py", line 31, in __init__
super(Serial, self).__init__(*args, **kwargs)
File "c:\python38\lib\site-packages\serial\serialutil.py", line 240, in __init__
self.open()
File "c:\python38\lib\site-packages\serial\serialwin32.py", line 78, in open
self._reconfigure_port()
File "c:\python38\lib\site-packages\serial\serialwin32.py", line 220, in _reconfigure_port
raise SerialException(
serial.serialutil.SerialException: Cannot configure port, something went wrong. Original message: PermissionError(13, 'A device attached to the system is not functioning.', None, 31)
Not sure if it’s relevant or not.
But after this or after unplugging\plugging micro usb it does not connect to wifi. At least I don’t see it in the devices or arp lists on my router. Is it supposed to connect to wifi without being connected to Haier AC? Or is it normal that it does not connect yet? I just did not want to proceed to soldering before I’m successful with this first step.
Here’s my current config. I did try original one without alterations (well, wifi ssid and password obviously), tried commenting out baud rate line, and finally tried to make new config with wizard and copy some stuff over =(
esphome:
name: haier_room2
platform: ESP8266
board: d1_mini
includes:
- Haier.h
wifi:
ssid: "ssid"
password: "pass"
manual_ip:
static_ip: 192.168.1.60
gateway: 192.168.1.1
subnet: 255.255.255.0
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Haier Room2 Fallback Hotspot"
password: "pass"
captive_portal:
# Enable logging
logger:
level: DEBUG
baud_rate: 0 #Important. You can't use serial port
# Enable Home Assistant API
api:
ota:
climate:
- platform: custom
lambda: |-
auto haier = new Haier();
App.register_component(haier);
return {haier};
climates:
- name: "Haier"
Hi same problem here. I Tried with protocol of miguel,albeta and v2 albeta.it doesn’t works.
No receive data from ac.
I tried to chance usb cable and invert tx/rx with no luck.
Any help will be appreciated
Thanks
We have two Haier AD25S2SS1FA 's. These units do’nt have an USB port. Haier sells the KZW-W001 as Wifi option. Is this solution also possible for this unit?
On the motherboard there are different connections, see also https://airco.wasco.nl/wp-content/uploads/2020/07/Haier-Technisch-Handboek-2020-EN.pdf
I wrote a suggestion for better home automation integrations to Haier customer support. They redirected me to official GE Appliances site and encouraged to share my ideas. I have already created topic:
https://cocreate.firstbuild.com/u/scrapid/idea/m95ckcru2bzgumi3gjgfzuxr9
I think they follow topics popularity, likes, comments. So let’s request simple changes from Haier if you miss some features
Hello @ceriel . You were able to figure out the problem with reading the data? I have the like problem with the air conditioner. I have the like problem with the air conditioner.
Hi! did you manage to do in some way?
Hi all,
Is anyone familiair with this module I found in my Haier unit?
I’m not, but it is certainly interesting! Already tried to check if it has open ports?
I did not check for open ports yet. The unit is loosely in the box and connected tot he MOBO with 4 wires. I asume it is just V+, gnd, TX and RX. The app I connected it to is called hOn.
Looks like there are no open ports?
Which tool did you use? Because many tools only scan common ports and you have to use 1-65535 to be sure.
Starting Nmap 7.60 ( https://nmap.org ) at 2021-04-01 09:06 CEST
Nmap scan report for 192.168.1.119
Host is up (0.11s latency).
All 65535 scanned ports on 192.168.1.119 are closed
MAC Address: 84:CC:A8:ED:14:18 (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 5798.96 seconds
Yes, scanned all ports
Ouch. Then we don’t have any entrance. Same happened with the KZW-W002 wifi module… Useless.
Is your unit the new tundra plus? That has Google assistant and Alexa connectivity according to the product site, perhaps that is a way to connect.
Am currently evaluating Haier products, want a unit that’s connect able to HA.