Hi, I'm looking for a way to detect a power outage in the garage. I have a simple Zigbee plug (switch) in there, but in the event of a power outage I cannot query it because the status is reported as the last known state. So for example I have a rule that runs every 5 mins and looks to see if the s…

I use the Ring Range Extender 2. It's a zwave device with a battery backup. It will report whether it is mains or battery powered. If you have zwave coverage in the garage this should do the trick, and act as a repeater as well. You could also try turning it off and back on and confirming that t…

When there is power, if you look in the events section for the device, does the plug report back with any regular updates! I would expect not, but given it is powered maybe it will...

You can try this driver. Although it was written to handle Tuya 'specifics', it works also with generic Zigbee outlets - I have tested it with OSRAM and IKEA outlets. It has a 'presence' capability that you can use to trigger your automations from RM rules.

I wholeheartedly second using Ring Alarm Extrnder v2 to detect power fails. It has a built-in battery so it works during power fails (assuming your hub is on a UPS). It’s straightforward to write a rule that receives the switch to battery event and shuts the hub down a reasonable time later before t…

Another option might be a smart plug that measures energy usage. If you plug something into that that always draws some amount of power, you could have HE report on any time the power reading was not greater than 1 -- that would account for a reading of 0 or null, depending on how that particular pl…

Non repeating Sengled bulbs are said to send an “off” state when losing power. This may be used to sense an outage.

I can think of three solutions. Ring Range Extender V1 Ring Range Extender V2 Lowe's Iris Range Extender with this driver: [release] Iris v1 Range extender zigbee driver All three devices have batteries in them and can report a power failure even when the outlet they are plugged in to is dead. …

+1 for the Ring Range Extender Or this... [image] DIY Smart Power Outage Monitoring Kit POWER'S OUT ALERTS! Monitor if power is on and get notified whenever there's an outage. You'll need to make sure that your hub has back-up power and a way to send notifications even if the lights ar…

Yes, but note that the Ring Alarm Range Extender v2 is $24.99.

Hubitat

Detect a Power Outage

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ronv42 February 6, 2022, 4:50pm 4

Here is how I do it:

Power outages 🛎️ Get Help

It took me a while to handle this with Rule Machine and global variables. Each of my rooms has a global variable that defines it's current state. I am able to detect power failures by using a Sengled classic bulb that turns on when power is restored. When that happens I re-enumerate though my room rules to make sure the last set scene is re-applied. I have a 5 minute delay after I detect the bulb has come on before I execute it. After the reset I then command that bulb to turn off. One …

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