vekexasia / comfoairq-mqtt

Comfoair Q 350 <-> MQTT integration in Node.JS

Hi there

I'm Andrea, a backend developer with a solid foundation in TypeScript and Node.js, specializing in creating efficient, scalable solutions. My approach to problem-solving is extremely rational, allowing me to navigate complex challenges with clarity and precision. My technical expertise and methodical thinking enable me to deliver high-quality results in every project I undertake. Passionate about coding and continuous improvement, I thrive on turning intricate problems into seamlessly functioning backend systems.

comfoairq-mqtt's Issues

general settings

I am a beginner and need help. which IP and user names do I have to enter in the .env file?

Need some help please

Hi,

I really could use some help with this part:
_Provided you've the necessary hardware, you need to create the .env file based on the .env-sample file with the proper environment variables.

Prerequisites:

node.js > 10
pm2 installed (npm i pm2 -g)
Steps:

clone this repository
run npm i or yarn
use pm2 start pm2.config.js
If you want to enable this project to run at startup then issue pm2 startup_

I have no clue what i'm supposed to do with this in home assistant.

Thanks in advance for some help!

Commented code and temperature == 0

Hello,
I am using an usbtin adapter through my windows laptop.
I am able to configure and start you program.
However I add to uncomment your commented code:
port.open(function (err) { if (err) { return console.log('Error opening port: ', err.message); } console.log('Serial Port open!'); port.write(canMessage.initMessage(), (err) => console.log('initError?', err)); // Because there's no callback to write, write errors will be emitted on the port: port.write('S2\r', (err) => console.log('w', err)); port.write('O\r', (err) => console.log('ww', err)); });
And also add a console.log on the parser function:
parser.on('data', (line) => { const strLine = ${line}.trim().split('\x07').join(''); console.log(strLine);

After that I started receive data on mqtt. Everything seems fine except for the temperature data. I receive 0 as value:
I dont' know if this can help but I am a device with Celsius temperature

Wrong temperature transformation

Just for information. Transformation for temperatures in Celcius for negative values is wrong.
Negative values use following nomenclature:

b'\xDF\xFF'

instead for positive:

b'\xDF\x00'

so using default transformation for negative values give value: 6550,3 C, which is wrong. It is correct for positive values as the first byte is '\x00' in that case, and does not have any influence on whole value.

I changed int16 temperature transformation to:

const int16 = (v1, v2) => v1 - v2;

Another change in this case should be *_air_humidity which cannot be negative and values are uint16.

After these changes all values are correctly parsed:

Unable to switch to automatic mode after manual

I can change the device speed with command "ventilation_level"
This command changes the device to manual and set the speed to 2.

When I send the command "auto" or "set_mode" to auto the device stays in manual mode.
Here is the generated message:
Topic name:auto
T1F010051485150801
received reply
T1F030051485150801
received reply

unable to write ComfoAir

Hi,
At the beginning big thanks for your soft!
I would like to ask you for help. For the first time I installed it all was OK. Someday I realized that I cannot send any message to recuperator.
I receive all data correctly. See example:

Client null received PUBLISH (d0, q0, r0, m0, 'comfoair/ah_actual', ... (4 bytes))
6.37
Client null received PUBLISH (d0, q0, r0, m0, 'comfoair/exhaust_fan_speed', ... (4 bytes))
2239
Client null received PUBLISH (d0, q0, r0, m0, 'comfoair/next_fan_change', ... (5 bytes))
11459
Client null received PUBLISH (d0, q0, r0, m0, 'comfoair/supply_fan_flow', ... (3 bytes))
126

However I want to send anything like:

Client null received PUBLISH (d0, q0, r0, m0, 'comfoair/commands/ventilation_level_3', ... (1 bytes)) 0

Nothing happens. I was suspecting some HW errors but with:
/djwlindenaar/zcan
I can send messages to my AerisNEXT, but with your soft looks like there is no communication when I try to send anything, at least it is not understandable.
When I click to send MQTT message on PM2 I receive following log:

0|comfoair_mqttbridge | canID addr: 1f054051
0|comfoair_mqttbridge | T1F05405180084150101000000
0|comfoair_mqttbridge | T1F054051781000100000003
0|comfoair_mqttbridge | received reply
0|comfoair_mqttbridge | received reply line: <Buffer 5a>
0|comfoair_mqttbridge | received reply
0|comfoair_mqttbridge | received reply line: <Buffer 5a>
0|comfoair_mqttbridge | canID addr: 1f074051
0|comfoair_mqttbridge | T1F07405180084150101000000
0|comfoair_mqttbridge | T1F074051781000100000003
0|comfoair_mqttbridge | received reply
0|comfoair_mqttbridge | received reply line: <Buffer 5a>
0|comfoair_mqttbridge | received reply
0|comfoair_mqttbridge | received reply line: <Buffer 5a>

but nothing changes, no boost, no ventilation level change. Would you mind helping me what else should i check or test?
This is console at the moment I clicked Boost 60 mode:

Below there is /zcan log setting boost 60:

~/djwlindenaar/zcan$ ./slcan_boost_60
Received: can_id=144061, can_dlc=4, data=b'\xe6(\x00\x00'
Received: can_id=1e8061, can_dlc=2, data=b'U\x04'
Received: can_id=4c4061, can_dlc=2, data=b'\x0f\x00'
Received: can_id=1d4061, can_dlc=1, data=b';'
Received: can_id=1e4061, can_dlc=2, data=b'\xd3\x08'
Received: can_id=10000021, can_dlc=0, data=b''
0X0021
1F015851#0084150106000000
1F015851#8100100E000000
Reply: 0X1F001461

support for RS485 CAN hat

I see that currently only USBtin is supported. Would it be possible to also support the RS485 CAN hat for the raspberry pi, made by waveshare: https://www.waveshare.com/rs485-can-hat.htm

I have this device on a pi zero w. It's visible as a can0 network interface:

$ ifconfig can0
can0: flags=193<UP,RUNNING,NOARP> mtu 16
unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 txqueuelen 10 (UNSPEC)
RX packets 2382522 bytes 3877541 (3.6 MiB)
RX errors 1 dropped 221 overruns 0 frame 1
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

and I'm able to see the can traffic:

$ candump can0
can0 004C4041 [2] 24 00
can0 001E4041 [2] 8F 05
can0 00354041 [2] 06 04
can0 10000002 [0]
can0 00804042 [2] 0C 00
can0 10000001 [0]
can0 001DC041 [2] C5 00
can0 001E8041 [2] 4A 05
can0 004C8041 [2] 25 00
can0 001E4041 [2] 8E 05

No read-write usb-can

In log I see the stream received from machine.
With mqtt.publish I send comfoair/commands/ventilation_level_3 , I see it in log, but machine doesn't change.
I may be wrong something, anyway I turn to https://github.com/gytisgreitai/zehnder-can-mqtt, in python, and it works fine and autotomatically populate configuration to homeassistant via mqtt.

Any chance to use this with RPi 0 + CAN HAT

Hi, is there any way to use this project with a very neat setup as below:
Raspberry Pi Zero + RS485 / CAN HAT for Rapsberry (uses MCP2515 and SN65HVD230 CAN module)?

That would be great to package it as a very nice looking solution (no soldering, no wires, etc.).

External setpoint

Hello,

is there a change to write the "External setpoint"?"

thank you :)

Init USB-CAN

Ciao @vekexasia , in questo issue: marco-hoyer/zcan#1 (comment)
hai scritto:

Apparently i had commented out from my code the S2\r and 0\r code. So the usbtin never initialized itself....

vedo in index.ts e dist/index.js che queste righe sono ancora commentate.
In VS Code mi da errore in index.ts:96 "r();" , pare che manchi un void...
Quindi tsc non compila.

Da Home Assistant / Sviluppo lancio con mqtt.publish i comandi, e nel console log di pm2 start pm2.config.js vedo
che la porta è aperta e i messaggi lanciati con mqtt.publish si tramutano in steam dati per la porta seriale. Ma il led sulla ComfoAir lampeggia veloce e nel suo display non cambia nulla.