Are there any apps or using the homey built-in logic to detect a specific computer being turned on and triggering a flow? I was thinking along the lines of a “reverse WOL” where the LAN triggers a flow but not sure if such a thing exists.

There are several options: If you want the flow to run after the computer has started, you could do a http-call in a bat-file if you want the flow to run when the computer is turned on, you could use a power-plug if you have a laptop which is fully charged, that might not work. Then you could use …

Perhaps allow me to explain why I need such a trigger. My computer is currently connected to a TV as my monitor and hence, there is a need to always manually turn on the TV when the computer is turned on. I’m thinking of linking the signal from powering up a computer to trigger a flow where the TV …

[image] Darkness: It seems counter-intuitive that there is no way to monitor the router or the LAN to check if a new MAC (layer 2) or IP (layer 3) has appeared on the network to trigger the flow. That’s SmartPresence , however the dev didn’t update it yet so you need to download it , alter comp…

How about using hdmi-cec on the TV? All TVs today have this option

Hm. Ywahm I don’t have the knowledge but that would be amazing.

You can also use the wake on Lan skill. Wake your pc and use that to run a flow atst :slight_smile:

What plug would you recommend? (want to do about the same with a TV going on via hdmicec > virtual device needs to turn on.)

I myself use Plugwise and FIbaro plugs but I think any plug with measuring capabilities would work (so no KlikAanKlikUit)…

Plug wise needs an extra hub right?

Old plugwise does, the new plugwise is straight Zigbee.

How do I detect a specific computer being turned on and run a flow?

Questions & Help

bvdbos March 2, 2019, 1:19pm 4

That’s SmartPresence, however the dev didn’t update it yet so you need to download it, alter compatibility yourself now andinstall it through the CLI.

Topic		Replies	Views
Computer as a device Apps	13	2162	May 30, 2026
Run flow when computer is active or not. (Mac) Flows flow , homey-pro	12	541	June 4, 2026
Activate flow when lan device is active Questions & Help flow	13	1081	June 16, 2020
Ping if PC is online Questions & Help	9	1907	May 16, 2021
Recognize ethernet connected laptop is turned on or off Questions & Help	12	196	April 24, 2025

How do I detect a specific computer being turned on and run a flow?

Related topics