Devi Smart

AberDino · March 12, 2025, 10:39am

Just upgraded HA to 2025.3.2 and the temperature readings are back .

The warning logged in HA log file is now:

(<class ‘homeassistant.components.mqtt.sensor.MqttSensor’>) is using native unit of measurement ‘C’ which is not a valid unit for the device class (‘temperature’) it is using; expected one of [‘°C’, ‘K’, ‘°F’]

julienma · March 14, 2025, 10:59am

Might be related to this PR (Update temperature units to °C by stas-demydiuk · Pull Request #11 · igor-podpalchenko/ha-devi-mqtt · GitHub) which has not yet been merged in the addon (GitHub - bob-tm/ha-devireg-mqtt-addon).

Edit: Ok I read the whole topic and just now understand that @Qa23 is the author of the addon :D, so probably aware of this PR.

M.Alex · May 28, 2025, 6:26pm

There was a problem starting the addon.
New installation of Home Assistant and addon. They have not been tested before.

Home Assistant Supervised
Core 2025.5.3
Supervisor 2025.05.3

The addon does not start. The logs contain the following

Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/usr/lib/python3.11/http/server.py", line 1309, in <module>
    test(
  File "/usr/lib/python3.11/http/server.py", line 1256, in test
    with ServerClass(addr, HandlerClass) as httpd:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/socketserver.py", line 452, in __init__
    self.socket = socket.socket(self.address_family,
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/socket.py", line 232, in __init__
    _socket.socket.__init__(self, family, type, proto, fileno)
PermissionError: [Errno 13] Permission denied

Does anyone have any ideas what might be the cause?

M.Alex · June 1, 2025, 9:30pm

The reason for the posted above errors was related to “entrypoint.sh”, namely to the line “exec python3 -m http.server 8000”.
After deleting the line the errors disappeared, but the addon was still not starting.
The problem was solved by adding the empty configuration file (devi_config.json) to the config folder (/var/lib/homeassistant/addon_configs/23700ff6_devismart-mqtt).

M.Alex · June 2, 2025, 7:53pm

Another one(

To configure thermostat's access. Download / open Devi application.
Go to settings -> Share Home -> OTP code will be generated. Enter this code, when requested.
For some reasons, first OTP code usually fails. Click back in mobile app and enter new code.
Try entering OTP few times.
Enter username (press Enter to use default [ha-user]):
Exception in thread "main" java.lang.NullPointerException: Cannot invoke "java.nio.channels.AsynchronousSocketChannel.close()" because "ch" is null
        at io.github.sonic_amiga.opensdg.java.Connection.safeClose(Connection.java:150)
        at io.github.sonic_amiga.opensdg.java.Connection.closeOnlySocket(Connection.java:144)
        at io.github.sonic_amiga.opensdg.java.GridConnection.connect(GridConnection.java:187)
        at io.homeassistant.binding.danfoss.internal.GridConnectionKeeper.getConnection(GridConnectionKeeper.java:38)
        at io.homeassistant.devi.mqtt.service.DiscoveryService.Discover(DiscoveryService.java:93)
        at io.homeassistant.devi.mqtt.service.DiscoveryService.main(DiscoveryService.java:41)

julienma · June 5, 2025, 8:51am

The upstream changed temperature unit to °C (cf. Update temperature units to °C by stas-demydiuk · Pull Request #11 · igor-podpalchenko/ha-devi-mqtt · GitHub), so I assume it’d good to merge it into your fork.

As I can’t create the PR myself (no permission), I created an issue here: Update temperature units to °C (need to update from upstream) · Issue #4 · bob-tm/ha-devireg-mqtt-addon · GitHub

LMK if I can help.

maniakum · August 28, 2025, 12:38pm

I have reloaded the thermostats into MQTT, however the temperature displayed in MQTT is the floor temperature and not the air. However, in the Devismart MQTT add-on it is visible that the temperature is being loaded, but I do not see it in MQTT.

What am I doing wrong?

maniakum · September 2, 2025, 5:34am

I made this:

mqtt:
  sensor:
    - name: "DeviReg vzduch chodba"
      unique_id: devireg_vzduch_chodba
      state_topic: "devi/state/xxxxxxxx/temperature_room"
      unit_of_measurement: "°C"
      device_class: temperature

MrStranger · October 8, 2025, 1:11pm

Thank you for you addon!
Works greate for me!
No code - just instal Mosquito Broker, add user, then your addon - then all steps from github - and all five my devismart become availible!
am i understand correct, than addon runs only ones - and then all jobs done by mosquito broker addon?

eckarth · October 24, 2025, 10:04am

I want to follow mlind/s instructions to install in HAOS running on an Odroid C2.

Linux a0d7b954-ssh 6.12.43-haos #1 SMP PREEMPT Mon Sep 8 17:06:35 UTC 2025 aarch64 Linux

I have to admit that I still get confused by docker.

Question: Where do you install? In the user space you see in terminal or in the docker space in which HA runs? Where do you place the files (jdk… etc.) such that they survive updates and reboots?

Qa23 · October 25, 2025, 9:07am

Addon runs in background and translate Devi Smart API to mqtt.