homeassistant

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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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Share your favorite automations (lemmy.world)

submitted 7 months ago by [email protected] to c/[email protected]

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I've been running HA for a while, and it's been working well; I haven't had to change much in a few months. That being said, it's fun to tinker with it, and I'm curious to hear what kind of automations the rest of the community is using. What automations are you most proud of? What are your favorite? What kind of interesting automations have you written?

My personal favorite is an automation that displays the current "apparent" temperature on a Hue bulb. It takes an average of the temperature, humidity, and luminance around my property and uses the average to compute an "apparent" (feels like) temperature. Then it applies a cosine function to the apparent temperature (to approximate how people feel temperature change), uses the resulting value to calculate a level between blue and red in CIELAB (a perceptually uniform color space), converts the results to RGB, and sets the color value of the hue bulb. The result is a bulb that changes color so that the change in color (as perceived by the eye) mirrors how the temperature "feels" outside. Ultimately what that means is that we can look at a small lamp with the hue bulb and say "It feels cold outside; we should put on a coat." It's probably overkill, but it was a fun programming exercise. We've started saying things like "It's really blue today, I don't feel like going out."

I'd really enjoy reading what kind of interesting automations everyone else has written.

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[–] [email protected] 17 points 7 months ago (8 children)

Washer voltage goes from a high value to a low value, then in 30 minutes (when the cycle will be done) turn an rgb lightbulb in a conspicuous location a hellish magenta. No more funky forgotten loads of laundry. Passes the partner test, too.

[–] [email protected] 5 points 7 months ago (2 children)

To all of you reading this who are interested but don't have home assistant (yet): I just set a timer for as long as the laundry takes. If I can't go get it when the timer goes off I will place a "memento" somewhere (for example placing something on the ground in my way where it doesn't belong) so I remember. The "set lighting to hell until I do it" solution sounds neat too, though. =)

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[–] [email protected] 7 points 7 months ago

If the furnace starts pulling more than 4,000 Watts, I get a telegram message that the auxiliary heat is running instead of the heat pump.

I have a sensor in my kindergartner's bag that lets me know when he gets to school and when he leaves school, also via telegram message.

If someone loiters around my driveway for more than 30 seconds, I get a telegram message with an image.

I haven't said it back up since I moved but I used to have one that used a combo sensor my washer and dryer doors. If the sensor moved enough for long enough it set a flag that the unit was running. If it want from running to not running for a long enough period of time, and the contact sensor wasn't tripped, I would receive alerts every 30 minutes or so that the clothes were done and still in the washer/dryer.

Even something as simple as water sensors under the sink if saved my ass. Cabinetry these days is made out of fiberboard and if it stays wet for more than a couple of hours it does horrible things.

[–] [email protected] 18 points 7 months ago* (last edited 7 months ago) (2 children)

My favorite is a script not a automation exactly. I run it (just before I get up for bed) via dashboard button or voice command and it:

shuts off most of the lights and any screens around the house
sets the thermostat to bedtime mode
waits 5 minutes (time for me to get my stuff and get to bed) then
turn off the remaining lights outside my bedroom
Calls my autoremote endpoint

Auto remote then triggers a tasker profile that makes my phone

turn on DND
set media volume for sleep music and alarm volume for morning (just in case either has been change during the day)
set a variable that another tasker automation will see the next time I plug in my phone. At which point it will:
- set my screen brightness below 1%
- turn on sleep tracking

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[–] [email protected] 1 points 7 months ago (1 children)

No automation to share at the moment but the "weather lamp" is a really fun idea!

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[–] [email protected] 6 points 7 months ago

I have a binary sensor that turns on when I'm away from home for 30 minutes and off when I'm home for 5 minutes. When I open the door and the sensor is on, music starts playing and the living room lights turn on. Love it.

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