How do I report and remove devices with no status update after pre-defined period?

Configuration
1

I have a bunch of rtl_433 devices showing up in Mosquitto broker but when I add them to dashboard and see when was the last signal received, for some of them it is >24h which is obviously not normal.

So the question is - how do I define a new dashboard which will be populated only with the devices where the last reported time is >24h? Devices which re-report again, should be automatically removed from the dashboard - only non-reporting (after a certain time) devices should be there.

THe next step would be to automatically remove devices which have not been reporting their status for >72h.

Thanks in advance.

2

there is conditional card type… not sure if you can implement this in a generic way as you need the entitiy for condition.
But i’m sure there could be groups defined too in templates to filter out unavailable entities and work with those.