Here’s a Node-Red flow to refresh z-wave entities turned on/off through Google Assistant.
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Problem this solves for:
I have a lot of non-z-wave plus devices which typically have delayed or stale states - i.e. you tell Google to turn on a light, the light turns on, but home assistant still says the light is off (either for a few seconds, minutes, or forever). This flow listens for Google Assistant device on/off events, parses the target entity or entities, and refreshes the zwave value for each entity.
Why not just poll?
Polling is expensive on your z-wave network, especially if you have a lot of devices. You should use polling sparingly and only when you are unable to use an event driven method like this one.
Requirements:
- Home assistant
- Node red
- ZwaveJS
- Google Assistant