Hi everyone,
I’ve about 10 arduinos scattered all over the home with many sensors connected.
They communicate through MQTT with Home assistant.
It sometimes happens that some sensors or arduinos stop working/communicating.
Now every arduino has a buzzer that sounds when there’s a problem. Unfortunately, it’s quite annoying when it happens in the middle of the night…
Consequently, I want to check that everything is ok from HA.
How can I create an automation that checks the time spent between 2 messages?
For example: every arduino should send a MQTT message every 60 seconds, I’d like to create an automation that triggers when the time spent is more than 180 seconds.
Thanks in advance!