this post was submitted on 27 Jan 2024
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Resetting Timers (lemmy.tf)
submitted 10 months ago by [email protected] to c/homeassistant
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I have a bunch of presence and motion sensors (like four, but shush) and when people leave rooms I would like to turn the lights off after five minutes, however if someone returns to the room before that five minutes is up, I'd like to start that countdown again. Is there a grateful way to do this that isn't me just doing if no activity for five minutes, turn off the lights, else wait five minutes and then turn off the lights. Because that's ugly, rigid and not very smart at all.

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[–] maxgyver 3 points 10 months ago* (last edited 10 months ago) (2 children)

Do NodeRED timers survive a restart?

[–] Flying_Hellfish 2 points 10 months ago

No, but you CAN use HA timers in NodeRED. You just have to trigger off the state of the timer itself. I did get it to work but it was quite a bit of spaghetti, I found it easier to use eventID triggers in the standard automation GUI for dealing with persistent timers.

[–] [email protected] 2 points 10 months ago

When I restart mine, I restart HA only, and all of the add-ons (including NodeRED) keep running. The problem is as soon as HA restarts, it blasts all of the states to NodeRED, and for the most part (I think), they all go from "unavailable" to "on/off". This restarts whatever timers NodeRED keeps track of. I don't know of a good way around this, but I restart HA so infrequently that it doesn't matter for me.