On IO 2018 google demonstrated a smart mailbox on stage, giving a spoken notification on a google home device, when a racoon was detected. One of the cornerstones of the solution is that the device trait, part of the Google Home graph is updated by sending the report state. I do understand that gBridge does support the ReportState feature. However, I still try to figure out how you can make the google home assistant device(e.g. google mini) to announce that ‘something’ has happened.
So after a virtual device state (trait) has been updated in the HomeGraph by using ReportState, how to setup the assistant to say something. Does anyone of you know how to do this?