Google Home App or a Matter Device?

[esegal]

Greetings,

I'm currently developing an automatic climate control system. The current implementation involves sensors, fans, dampers and a Raspberry Pi that controls their activation based on the weather forecast.

We're currently considering integrating into the Matter ecosystem. With the sensors, fans and dampers - this is clear. Each will be a Matter device. My question is which Matter component can replace our Raspberry Pis?

I was thinking about a Google Home App, which needs to run constantly, monitoring sensors, computing actions based on the forecast, and send actions to the fans and dampers. This is done usually without the end user intervention (although the system can be turned on or off).

Browsing through developers.home.google.com I didn't find an option to develop such a "controlling" app. Am I missing anything or should we develop another Matter device to act as the controller?

[sipriyadarshi · Accepted solution]

• Currently Google does not offer a functionality where you relay commands through GHA from an outside controller. If you want to implement a controller of your own, you can take a look at the publicly available tools matterhorn (Android) and chiptool sdk (Linux) that achieve something similar as the base of your project. 
• Also the Routines in GHA won’t work for this purpose at the moment, as there is no way to add a weather forecast as a trigger right now.