I use Commax Intercom system for my house. One of the monitors, CDV-70QT works with wifi (however, using its own app called Hey Call)
In Home Assistant I use Tuya (Cloud) Integration and LocalTuya Integration.
The LocalTuya Integration actually detects the CDV-70QT on my network, but when I come to set it up with LocalTuya, it is asking me for the device's Local Key – which is close to impossible to obtain. I have done a lot of research online (using also ChatGPT and Claude) and it seems many users have this problem and that the Local Key is hidden from us. It’s not available from the Tuya IOT platform and not retrievable using tinytuya script.
I tried an HACS integration which was recommended for integrating said intercom, but again I got stuck at the Local Key stage.
If the intercom can be more or less integrated in Home Assistant, I can perhaps set it up that when a ring is detected, it can trigger an automation in Home Assistant to ring eg. a siren or to trigger other alerts and sounds.
All I need is the Local Key.
Has anyone every tried to do this please? Commax is quite a well-known brand.
Thanks