@bitweasel: Would be great if you’d like to share some of your code?
I suggest that plugin used cheap CAN adapter instead expensive Zehnder wifi module 
Why not both? 
1 Like
Hello Vakis2006,
Totally agree. The Comfosense Lan is very expensive.
I wonder if anyone has already realized this.
Could a CAN analyzer help to realize this?
if someone is interested i’ve implemented gateway for ComfoAir Q in Homie4 convention. It supports most of sensors and there is a possibility of controlling various modes including fan speed, automatic and manual mode, away and boost mode for a given time or balance mode. Everything should be auto-discovered by OpenHAB. It is possibility of controlling connection to Comfoconnect LAN directly from OpenHAB. Unfortunately there are some issues with Homie binding in OpenHab but I’ve implemented workaraound and a few rules.
https://github.com/klaudiusz223/ComfoAirQ-Homie
4 Likes
Hello Klaudiusz,
Can you write a short “howto” guide to get this running in Openhab?
Thx for your effort!
1 Like
First you will need MQTT broker. I’m using mosquitto and i don’t recommend OH embedded broker. Then install MQTT binding for OH and configure MQTT broker in OH. Above task are very common so You should easy find ready HOWTO’s.
With properly installed MQTT in OH. You can start installation of ComfoAirQ-Homie according to README file from repository.
After installation 2 Homie devices should be auto discovered by OH so You can configure everything using Paper UI. If You preffer using text configuration there are examples in my repository.
1 Like
Would this Node-RED MQTT Broker be suitable?
Can you shed any light on this?
I’ve added the two items that you mention on your GitHub page (and Wheel, which was missing)
But when I run the comfoairq-homie command, I get this
root@OpenHab2_Odroid:/opt# comfoairq-homie
Traceback (most recent call last):
File "/usr/local/bin/comfoairq-homie", line 9, in <module>
load_entry_point('comfoairq-homie==0.2.0', 'console_scripts', 'comfoairq-homie')()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 542, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2569, in load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2229, in load
return self.resolve()
File "/usr/lib/python3/dist-packages/pkg_resources/__init__.py", line 2235, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/usr/local/lib/python3.5/dist-packages/comfoairq_homie/__main__.py", line 11, in <module>
from .comfoairq_homie import ComfoAirQ_Homie
File "/usr/local/lib/python3.5/dist-packages/comfoairq_homie/comfoairq_homie.py", line 4, in <module>
from .homie_device.device_comfoairq import Device_ComfoAirQ
File "/usr/local/lib/python3.5/dist-packages/comfoairq_homie/homie_device/device_comfoairq.py", line 20, in module>
from ..comfoairq.comfoairq import ComfoAirQ
File "/usr/local/lib/python3.5/dist-packages/comfoairq_homie/comfoairq/comfoairq.py", line 15
connection_event : threading.Event = None
^
SyntaxError: invalid syntax
I’m assuming I’m missing a step somewhere, as I would assume I need to put add an IP address and some credentials for both the ComfoAir and the MQTT broker ??
Also, will this run in the background without further interaction and how would you recommend I / we add it to the startup routine?
Update
It looks like I’m missing a step somewhere, as the comfoairq-homie.service file hasn’t been installed
And FYI
It looks like it’s due to python 3.5. Theoretically python 3.6 is required but I will try to solve it. Please check the new version I recently commited (use --upgrade option during installation). I updated also README file and added info about config file. Systemd service file is not installed by default. You need to do it manually. Example configs are in repo.
1 Like
I also don’t get it to run. I am also missing a step by step guide because I am not familiar with python.
My environment:
openHABian mit openHAB 2.5.1-2
Release = Raspbian GNU/Linux 10 (buster)
Kernel = Linux 4.19.93-v7+
Platform = Raspberry Pi 3 Model B Plus Rev 1.3
my steps:
install python:
sudo apt-get install python3-pip
Then continue with the instructions on https://github.com/klaudiusz223/ComfoAirQ-Homie:
pip3 install --upgrade git+https://github.com/michaelarnauts/comfoconnect.git
pip3 install git+https://github.com/klaudiusz223/ComfoAirQ-Homie.git
result:
Successfully built comfoairq-homie
Installing collected packages: paho-mqtt, netifaces, Homie4, pyyaml, comfoairq-homie
The script comfoairq-homie is installed in ‘/home/openhabian/.local/bin’ which is not on PATH.
Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
Successfully installed Homie4-0.3.5 comfoairq-homie-0.2.1 netifaces-0.10.9 paho-mqtt-1.5.0 pyyaml-5.3.1
Configfile:
Create comfoairq_homie.yml or adapted template from GitHub - klaudiusz223/ComfoAirQ-Homie: Homie4 for Zehnder ComfoAirQ.
Where can I get the COMFOCONNECT_UUID ??
So now to the real problem.
No matter where I copy the comfoairq_homie.yml I always get the following error:
[18:38:02] openhabian@openhab:~$ python3 -m comfoairq_homie
Traceback (most recent call last):
File “/usr/lib/python3.7/runpy.py”, line 193, in _run_module_as_main
“main”, mod_spec)
File “/usr/lib/python3.7/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/main.py”, line 72, in
main()
File “/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/main.py”, line 48, in main
with open(args.config, ‘r’) as ymlfile:
FileNotFoundError: [Errno 2] No such file or directory: ‘./comfoairq_homie.yml’
I tried the following paths:
/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/comfoairq_homie.yml
/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/comfoairq/comfoairq_homie.yml
/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/homie_device/comfoairq_homie.yml
/home/openhabian/.local/bin/comfoairq-homie//comfoairq_homie.yml
more attempts:
[18:47:56] openhabian@openhab:~$ comfoairq-homie
-bash: comfoairq-homie: Kommando nicht gefunden.
[18:50:50] openhabian@openhab:~$ comfoairq-homie -c config_file.yml -l optional_log_file.log
-bash: comfoairq-homie: Kommando nicht gefunden.
[18:50:51] openhabian@openhab:~$ sudo comfoairq-homie -c config_file.yml -l optional_log_file.log
sudo: comfoairq-homie: Befehl nicht gefunden
[18:50:54] openhabian@openhab:~$ python3 -m comfoairq-homie -c config_file.yml -l optional_log_file.log
/usr/bin/python3: No module named comfoairq-homie
[18:51:09] openhabian@openhab:~$ sudo python3 -m comfoairq-homie -c config_file.yml -l optional_log_file.log
/usr/bin/python3: No module named comfoairq-homie
Please help
thx
1 Like
please try :
python3 -m comfoairq_homie -c config_file.yml
or with log file
python3 -m comfoairq_homie -c config_file.yml -l optional_log_file.log
python module name is comfoairq_homie (underscore) but console script is comfoairq-homie (dash). Unfortunately console script is not installed correctly in Your system or maybe You need to correct PATH variable.
COMFOCONNECT_UUID - You rather don’t need to change that
What exactly do I have to do? I installed it exactly according to the instructions.
I overlooked the underscore. Now I’m getting a little bit further:
[21:44:16] openhabian@openhab:/home$ python3 -m comfoairq_homie -c /home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/comfoairq_homie.yml -l /home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/comfoairq_homie.log
2020-05-17 21:48:38,828 - [main] [INFO] Waiting… Stop with CTRL+C
2020-05-17 21:48:38,828 - [main] [INFO] Waiting… Stop with CTRL+C
Traceback (most recent call last):
File “/usr/lib/python3.7/runpy.py”, line 193, in _run_module_as_main
“main”, mod_spec)
File “/usr/lib/python3.7/runpy.py”, line 85, in _run_code
exec(code, run_globals)
File “/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/main.py”, line 72, in
main()
File “/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/main.py”, line 58, in main
comfoconnect_settings = cfg[‘comfoconnect’],
File “/home/openhabian/.local/lib/python3.7/site-packages/comfoairq_homie/comfoairq_homie.py”, line 34, in init
connect_at_start = comfoconnect_settings[‘COMFOCONNECT_AUTOCONNECT’],
KeyError: ‘COMFOCONNECT_AUTOCONNECT’
the content of the log file:
2020-05-17 21:48:38,828 - [main] [INFO] Waiting… Stop with CTRL+C
2020-05-17 21:48:38,828 - [main] [INFO] Waiting… Stop with CTRL+C
what should happen now? Nothing happens in the MQTT, no message …
Add to the config:
COMFOCONNECT_AUTOCONNECT : True
You can find updated version in the repo
thanks, it works - at least many MQTT messages come in! Every 2 seconds each state!
Is this ok? Hope the MQTT server can handle it.
It would be enough for me every 30 seconds. Can i set that?
Attached is my log file, the following error always occurs:
2020-05-17 23:51:05,029 - [homie.device_base] [INFO] Device MQTT Connected state is True
2020-05-17 23:51:05,031 - [homie.device_base] [INFO] Device MQTT Connected state is False
2020-05-17 23:51:05,034 - [homie.mqtt.paho_mqtt_client] [WARNING] MQTT Unexpected disconnection <paho.mqtt.client.Client object at 0x75bbbc10> None Connection refused - incorrect protocol version
2020-05-17 23:51:05,041 - [homie.mqtt.mqtt_base] [WARNING] MQTT On Disconnect: Result Code 1
comfoairq_homie.log (109.6 KB)
Thanks a lot!
regarding to errors:
IIRC I had similar errors with OH embedded MQTT broker. I switched to mosquitto and everything works perfectly. Which broker do You use?
regarding to messages:
it shouldn’t be a problem for MQTT broker. There is no simply option for slowing down but it can be easy twicked in the code by removing unused sensors or adding transformation functions. All read only sensors are defined in this dictionary https://github.com/klaudiusz223/ComfoAirQ-Homie/blob/81384b86a15591d1480c933415aa38ea545c61ed/comfoairq_homie/homie_device/device_comfoairq.py#L90.
Some Python skills are required
Thank you for your time in helping us “non-software” people get to grips with your code.
I’m making progress by following your comments here.
This is what I have done so far and it seems to be working.
All I have to do now is edit the .service file to make it start at boot.
(I don’t see the virtualenv folder, so I’m a bit stuck now)
-
Created a MQTT broker in Node-RED (Aedes)
-
Cloned your GIT to /opt
git clone https://github.com/klaudiusz223/ComfoAirQ-Homie.git -
ran the two commands shown in your Readme page
pip3 install --upgrade git+https://github.com/michaelarnauts/comfoconnect.git
pip3 install git+https://github.com/klaudiusz223/ComfoAirQ-Homie.git
I originally got some errors saying that I didn’t have wheel installed, so I ran this command and tried the two above again
pip3 install wheel
- edited the comfoairq_homie.yml file as best I can, given that I’m not entirely sure what the correct information in (The PIN seems to have been changed, so I’ll need to talk to the installer)
mqtt:
MQTT_BROKER: "127.0.0.1"
MQTT_PORT: 1883
MQTT_USERNAME: null
MQTT_PASSWORD: null
MQTT_KEEPALIVE: 60
MQTT_CLIENT_ID: null
MQTT_SHARE_CLIENT: False
comfoconnect:
COMFOCONNECT_HOST : null
COMFOCONNECT_PIN : 0000
COMFOCONNECT_NAME : "ComfoConnect Homie Gateway"
COMFOCONNECT_UUID : "00000000000000000000000000000006"
COMFOCONNECT_AUTOCONNECT : True
comfoairq_homie:
HOMIE_ID : zehnderq450
HOMIE_NAME : ZehnderQ450
Setting the Host to 192.168.1.31 seemed to speed up the process, but I can’t see any major change.
IE
comfoconnect:
COMFOCONNECT_HOST : 192.168.1.31
COMFOCONNECT_PIN : 0000
COMFOCONNECT_NAME : "ComfoConnect Homie Gateway"
COMFOCONNECT_UUID : "00000000000000000000000000000006"
COMFOCONNECT_AUTOCONNECT : True
When I run the following command, I get a lot more useful information,which looks like it is really trying to connect, if it wasn’t for that dam PIN… 
python3 -m comfoairq_homie -c comfoairq_homie.yml
root@OpenHab2_Odroid:/opt/ComfoAirQ-Homie# python3 -m comfoairq_homie -c comfoairq_homie.yml
2020-05-18 11:05:32,304 - [__main__] [INFO] Waiting... Stop with CTRL+C
2020-05-18 11:05:32,304 - [__main__] [INFO] Waiting... Stop with CTRL+C
2020-05-18 11:05:32,306 - [homie.mqtt.homie_mqtt_client] [INFO] Using new MQTT client, number of instances 0
2020-05-18 11:05:32,307 - [homie.mqtt.mqtt_base] [INFO] MQTT set will homie/zehnderq450/$state, topic lost
2020-05-18 11:05:32,313 - [homie.mqtt.paho_mqtt_client] [INFO] Starting MQTT publish thread
2020-05-18 11:05:32,315 - [homie.mqtt.paho_mqtt_client] [INFO] Starting Asyincio looping forever
2020-05-18 11:05:32,319 - [homie.device_base] [INFO] Device Start ZehnderQ450
2020-05-18 11:05:32,320 - [homie.device_base] [INFO] Device MQTT Connected state is True
2020-05-18 11:05:32,360 - [homie.mqtt.homie_mqtt_client] [INFO] Using new MQTT client, number of instances 1
2020-05-18 11:05:32,372 - [homie.mqtt.mqtt_base] [INFO] MQTT set will homie/zehnderq450gateway/$state, topic lost
2020-05-18 11:05:32,376 - [homie.mqtt.paho_mqtt_client] [INFO] Starting MQTT publish thread
2020-05-18 11:05:32,378 - [homie.mqtt.paho_mqtt_client] [INFO] Starting Asyincio looping forever
2020-05-18 11:05:32,380 - [homie.device_base] [INFO] Device Start ZehnderQ450Gateway
2020-05-18 11:05:32,402 - [homie.device_base] [INFO] Device MQTT Connected state is True
2020-05-18 11:05:37,505 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Bridge found: 00000000000c10128001144fd71e05cd (192.168.1.31)
2020-05-18 11:05:38,538 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] Connection failed
2020-05-18 11:05:38,539 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] Could not connect to the bridge since the PIN seems to be invalid.
2020-05-18 11:05:38,539 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Disconnection procedure
2020-05-18 11:05:38,540 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] 'NoneType' object has no attribute 'join'
2020-05-18 11:05:43,616 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Bridge found: 00000000000c10128001144fd71e05cd (192.168.1.31)
2020-05-18 11:05:44,668 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] Connection failed
2020-05-18 11:05:44,669 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] Could not connect to the bridge since the PIN seems to be invalid.
2020-05-18 11:05:44,669 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Disconnection procedure
2020-05-18 11:05:44,669 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] 'NoneType' object has no attribute 'join'
2020-05-18 11:05:49,709 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Bridge found: 00000000000c10128001144fd71e05cd (192.168.1.31)
2020-05-18 11:05:50,748 - [comfoairq_homie.comfoairq.comfoairq] [WARNING] Connection failed
I’m hoping that this comfoairq-homie.service file will do the trick, once I get the PIN right.
[Unit]
Description="Homie4 ComfoAirQ Service"
After=syslog.target network.target nodered.service openhab2.service
[Service]
WorkingDirectory=/opt/ComfoAirQ-Homie/
Environment=COMFOAIRQ_LOGLEVEL=INFO
Environment=COMFOAIRQ_COMFOCONNECT_LOGLEVEL=INFO
Environment=PATH=/opt/ComfoAirQ-Homie:$PATH
ExecStart=/usr/bin/python3 -m comfoairq_homie -c /opt/ComfoAirQ-Homie/comfoairq_homie.yml
ExecStop=/bin/kill $MAINPID
Restart=always
[Install]
WantedBy=multi-user.target
Update
We’ve got the pin now and the output has changed to something more positive, but it still looks like there is an issue, as PaperUI is reporting this for the Gateway Thing
Status: OFFLINE - COMMUNICATION_ERROR java.lang.Exception: Did not receive mandatory topic value: homie/zehnderq450gateway/$name
systemctl status comfoairq
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,556 - [homie.device_base] [INFO] Device MQTT Connected state is True
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,606 - [homie.mqtt.homie_mqtt_client] [INFO] Using new MQTT client, number of instances 1
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,614 - [homie.mqtt.mqtt_base] [INFO] MQTT set will homie/zehnderq450gateway/$state, topic lost
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,621 - [homie.mqtt.paho_mqtt_client] [INFO] Starting MQTT publish thread
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,622 - [homie.mqtt.paho_mqtt_client] [INFO] Starting Asyincio looping forever
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,623 - [homie.device_base] [INFO] Device Start ZehnderQ450Gateway
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,638 - [comfoairq_homie.comfoairq.comfoairq] [INFO] Bridge found: 00000000000c10128001144fd71e05cd (192.168.1.31)
May 18 12:04:23 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:23,655 - [homie.device_base] [INFO] Device MQTT Connected state is True
May 18 12:04:24 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:24,161 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
May 18 12:04:24 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:24,162 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
FYI…
I have upgraded to Python 3.6 using these instructions -
https://medium.com/@rajputankit22/upgrade-python-2-7-to-3-6-and-3-7-in-ubuntu-97d2727bf911
That’s is one of the issues I mentioned earlier. It’s a known bug ([mqtt.homie] Did not receive mandatory topic value: homie/xxx/$name · Issue #7252 · openhab/openhab-addons · GitHub). After installation any Homie device in OH you need restart it :-(. So please restart ComfoAirQ-Homie. Similar situation is when you restart OH. You need to restart Homie device. But I prepare workarounds. Rules for OH are in repo. So implementing this rules should solve future problems.
Regarding to config:
COMFOCONNECT_PIN : 0
is a correct configuration. You don’t need to change anything. I don’t know what for is this pin used:-).
Regarding to service.file
looks quite good but You need to follow the whole installation procedure for custom systemd service. Please find proper howto for Your linux distro. It will be much better than my;-)
Regarding to virtualenv folder:
My installation is in python virtual environment. It’s not necessary. It gives some advantages but You can skip it or leave it as last stage.
Hello
Thanks for replying.
That’s curious.
Without changing the PIN, I was getting a constant error, stating that the PIN was incorrect.
Changing it to the PIN needed for the phone app made a huge difference.
The service file I’ve created seems to be working well 
Curious
I’ll try a complete reboot, as that’s the only thing I haven’t done yet.
Is the error I’m seeing normal until a full restart?
May 18 12:04:24 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:24,161 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
May 18 12:04:24 OpenHab2_Odroid python3[1647]: 2020-05-18 12:04:24,162 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
Ummmm
I’ve completely rebooted the machine and it’s still reporting this error
May 18 17:07:08 OpenHab2_Odroid python3[1647]: 2020-05-18 17:07:08,995 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
May 18 17:07:08 OpenHab2_Odroid python3[1647]: 2020-05-18 17:07:08,996 - [comfoconnect] [INFO] Unhandled CnNodeNotificationType
And the Things are stating
Status: OFFLINE - COMMUNICATION_ERROR java.lang.Exception: Did not receive mandatory topic value: homie/zehnderq450gateway/$homie
But… I have now got channels in the Gateway so that’s a massive step forward.
I’m totally stabbing in the dark here…
Do I need to do something with the MQTT bridge, like adding a channel?
If so .
What does it need?
