Support for Flexit Nordic S4 (IP/Modbus)


Flexit currently have Flexit Nordic S4 model with built in Ethernet, this one support local or cloud connection. Any possibility to have this support Flexit GO support?

On top of this, Flexit Nordic S4 also have MODBUS module:

It wold be nice to have this support. Any help from my site. I can provide tunnel to device.


Hi @Bl00d-B0b,

I created a pull request for that feature: Flexit BACnet - new integration by piotrbulinski · Pull Request #79652 · home-assistant/core · GitHub

Please give it a go and let me know it works for you.


Hi @piotrbulinski,

I’m so glad you have created this integration, I have been now waiting two months for it to be included into the official HA release but now I just can’t wait anymore. Could you help me by sharing instructions how to install this integration from GitHub?


Hi Olli,

I’m planning on finding a way to run it myself from the source code directly. Unfortunately I don’t know of an easy way to run it with stock HAss (which is my current setup using RPi image). I might have some time next weekend to investigate that and I can let you know what I come up with.

Ventilation is the last item to have integrated in my home and it’s unfortunate that HASS core team is overloaded with work and cannot review/merge this integration.



I saw that your pull request on HA-core was closed. Any chance of trying again? Could this be integrated with HACS as a stop-gap?

I am also very interested in getting support for Flexit in Home Assistant. Why was the PR closed? Can I help in any way?

With the amount of work HA core team has, review of this PR wasn’t a priority. I’m not proficient in HA development enough to take several weeks break between iterations to get this done (I need to relearn the HA development process pretty much from scratch every time I look at it). I wish HA would have a native way of adding custom integrations without having to go through their rigorous review process and AFAIK hacks is not so easy to use by non-dev users (please correct me if I misunderstood it).

With all of that in mind, I’m evaluating other platforms where I can get my home automation done (incl. flexit integration) and that’s where my focus is ATM.

After discussing with @lellky a bit, we will attempt again to get the integration merged. Before that happens we need time to fix some stuff and I’ll reopen the pull request.