Hi everyone,
I’m looking for contributors and experienced developers interested in adding support for the new Innova FÄRNA fan-coils to Home Assistant.
Older Innova 2.0 and AirLeaf devices expose a nice local REST API, which is why the HACS integration works so well.
However, the new FÄRNA models are completely different:
What we discovered
- No
/api/v1/status→ no local JSON API at all - The device does not expose state locally
- The official Innova app communicates only with the cloud
- The cloud backend uses gRPC over HTTP/2, not REST
- All payloads are protobuf, encrypted with TLS
- Certificate pinning prevents traditional MITM sniffing
Cloud endpoint observed:
grpc.innova.solutiontech.tech
content-type: application/grpc
So these new units cannot be integrated using the existing Innova integration.
What we need
Anyone willing to help with:
- protobuf message reconstruction
- gRPC method enumeration
- cloud auth flow analysis
- testing a new integration module
I’m willing to collaborate and provide captures, device behavior, and structured analysis.
Related issue on GitHub
https://github.com/danielrivard/homeassistant-innova/issues/203
If you’re interested in helping add support for these newer units (which are becoming very common), please join the discussion!