Safe way to power down Hubitat after power failure

[aaiyar]

@tony3286

I do have a battery backup that should power the hub for a few hours but recently we've lost power for longer periods of time and the reason for my concern. I'm really looking for a means, first , to know if a power outage has occured and second either write a rule to safely power down the hub

First, build yourself a device that detects when power is off, i.e. a Power Monitor.

Then write a rule like this:

Trigger:

Power monitor *changed*

Actions:

IF (Power Monitor open)  THEN
    Send POST to http://your_hubitat_ip:8080)hub/shutdown --> delayed 1:00:00 (cancelable)
ELSE
    Cancel delayed actions
ENDIF

For this to work, you must have disabled hub login. Set the delay to the appropriate length for your battery backup.