Here is the idea…
I have a battery operated device that does not have the capability to report battery level, but when operating properly it updates a device variable on an interval of about 60 seconds. So, if there was a way for me to determine that the device was not updated for say 5 minutes it might be a good assumption that the device batteries as dead.
If I create a device properties input based on the device variable that gets updated about 60 seconds, then create an interval schedule, can I create a condition triggered by the interval schedule that checks the delta between the inputs Last Change and Previous Change values that are shown in the Status Report?