I have a few devices, dashboard tiles, etc., that are based on external devices through an MQTT integration. I would like to create RM rules to monitor for continued activity on these devices and warn me if there is a lack of expected activity.
Essentially, if last activity on a device has not been updated in the last X mins, then execute further actions.
I can't seem to find a way in RM to access a devices "last activity" timestamp and execute methods on it. I would greatly appreciate any ideas on this for me to try.
I really wish Rule Machine had a way to work with activity. I find the Device Watchdog confusing to use. Also, I am in a scenario where I need to be alerted in seconds, not hours. I don't see a way to do that with Device Watchdog.
Since the above was written two years ago, Rule Machine has added a "Time Since Event" condition you can use to test this:
However, you are still limited to minutes (or hours). Just curious, what re you doing if you need seconds-level granularity? Also, I found Device Watchdog fairly easy to set up when I used it, though I eventually moved what I was using that for over to a different custom app I wrote (Device Activity Check) to fill my particular needs--but that's still minute-level at most. But if you need help with those specific apps, you might try asking in their threads.
