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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 10 months ago by corroded@lemmy.world to c/homeassistant@lemmy.world

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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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[–] Bishma@discuss.tchncs.de 18 points 10 months ago* (last edited 10 months ago) (1 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

[–] SteadyGoLucky@sh.itjust.works 8 points 10 months ago (1 children)

I use the Home Assistant companion app instead of Tasker. It has similar access to automate phone stuff

[–] Bishma@discuss.tchncs.de 3 points 10 months ago

Nice. I've had this going a lot longer than the companion app has existed

[–] zero_spelled_with_an_ecks@programming.dev 17 points 10 months ago (5 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.

[–] whyNotSquirrel@sh.itjust.works 7 points 10 months ago

It's the first time I read "partner test" and I like it, I was always bothered by the usual "expression"

[–] arandomthought@sh.itjust.works 5 points 10 months ago (1 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. =)

[–] Willdrick@lemmy.world 4 points 10 months ago (1 children)

A middle ground "normie-tech" I use: after picking the cycle, whip out your phone and start a countdown timer. Mine at least can save such timers and I can name them.

I got fed up that my washing machine lies on its timer: it doesn't count the drying cycle and then it takes another 3 minutes to unlock the door. So I timed that once. For example a 42 min timer for the quick cycle (30 wash + 9 dry + 3 stupid lockout)

[–] lemming741@lemmy.world 2 points 10 months ago

https://en.m.wikipedia.org/wiki/Wax_motor#Applications

The reason for the stupid lockout. Pretty ingenious, but yeah they all lie. The worst offenders are heat pump dryers. I think they're gaslighting their customers.

[–] cynar@lemmy.world 3 points 10 months ago

I often use the acronym WAF, Wife Acceptance Factor.

Basically I need to make sure that all household setups can work completely dumb, with the central server having crashed.

So far, so good.

[–] Railison@aussie.zone 1 points 10 months ago

Ooh I’ve got a similar trigger! Instead of coloured lights, mine strobe every five minutes incessantly until I open the machine door (power usage goes down ~3W for some reason). Also notify the phones and put a banner on the TV.

[–] Passerby6497@lemmy.world 1 points 10 months ago (3 children)

What do you use to monitor your washer? I've got an older 3 prong circular plug that I can't find anything that hooks into it.

[–] zero_spelled_with_an_ecks@programming.dev 2 points 10 months ago

I used a sonoff s31 and flashed tasmota onto it, but it's a standard American outlet, not a triphasic one.

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[–] __init__@programming.dev 14 points 10 months ago (1 children)

Less of an automation and more of a scene control, but I have all my light switches set up so that double tapping them up or down turns on or off all the lights on that floor of the house. It’s simple but we use it all the time.

[–] Styxia@lemmy.world 3 points 10 months ago (2 children)

I have an extension on this, in that a triple tap on the switch by the doors, will also lock the doors after 60 seconds.

[–] linearchaos@lemmy.world 3 points 10 months ago

If I unlock my door, it will re-lock in 15 minutes as long as the door is shut. opening the door resets the timer.

Of course it's a code door, so re-opening it has a very low chance of locking me out :)

[–] __init__@programming.dev 2 points 10 months ago

Ah nice. I just have the switches by the front and garage doors turn off everything instead of just downstairs, so we can hit them on the way out the door. I think triple taps are reserved for inclusion/exclusion mode on my switches, sadly. The delayed lock is a good idea though, might just have to add that.

[–] linearchaos@lemmy.world 7 points 10 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.

[–] StefanT@lemmy.world 6 points 10 months ago* (last edited 10 months ago)

The hot water pipe to the kitchen is quite long. We have a pipe loop there with a pump. Back in the days we had an ordinary timer that let the pump run at the usual times when there is hot water demand to be expected.

I now use a Zigbee plug for the pump and added a button in the kitchen to start it manually. In addidion HA starts it in the morning and every time when somebody comes home. Another HA automation turns off the pump after 3 minutes and ensures that it does not start again for 30 minutes.

[–] a1studmuffin@aussie.zone 6 points 10 months ago (2 children)

The simplest automations are the best. An hour before I typically get up, if the bedroom is too cold, turn on the heater.

[–] spongebue@lemmy.world 1 points 10 months ago (1 children)

I use Kasa switches all over my house and am waiting for them to release their fan controller (it was announced at CES last year, and a thread on the old place says it'll be out at the end of the month)

I'm excited for my fan to shut off if it's too cold in the bedroom. Already have a temperature/humidity sensor in there.

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[–] corroded@lemmy.world 1 points 10 months ago (1 children)

How do you control your heater? My house has Cadet in-wall heaters in every room, but all the "smart" controllers I can find for them are incredibly expensive... roughly $400 each. That's something like $2400 to automate my heating. Maybe an ESP32 with a few relays would work?

[–] a1studmuffin@aussie.zone 1 points 10 months ago* (last edited 10 months ago)

It's a Mitsubishi Heavy Industries split system. The two options I had were an IR blaster or a DIY ESPhome-based module plugged directly into the unit that controls it over the SPI bus. I opted for the latter as it gives full status info in addition to control.

I've also got a Samsung unit in another room that I can control. For that one I use SmartThings... not ideal as it goes through the cloud, but I'll take what I can get.

If you've got an old-school heater, you might have luck with some of the smart thermostats designed to be retrofitted into old houses.

Edit: just looked up your heaters online. Since you've got a lot of them, and they look pretty old, I'm guessing the smart controllers are just acting as relays. So yeah perhaps an ESP32 relay module would be the way to go! Once you've got the code working for one, you could roll them out to the rest. You'd need some confidence working with relays and electronics of course.

[–] door_hater@lemmy.world 6 points 10 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.

[–] rambos@lemm.ee 5 points 10 months ago

Not really common automation for HA, but I made medication assistant automations. Its super helpfull for people who take loads of meds. It tracks how many pills left, does android notifications or sets alarm and it also sends an email when its time to reorder meds. Its insane how usefull it is

[–] ikidd@lemmy.world 5 points 10 months ago (1 children)

HTML scrape of CUPS web server to see if there's a print job waiting, turn on tasmota plug for laserprinter, then turn off in 5 minutes to save power.

It's an old LJ4000 so it's idle power is pretty high.

[–] eutampieri@feddit.it 3 points 10 months ago (1 children)

I use the IPP integration for that

[–] ikidd@lemmy.world 3 points 10 months ago* (last edited 10 months ago) (1 children)

I'm trying this now, I see it change the state to "printing" but I can't bring up the device in automations to act on it. If I go into the IPP devices page and try to add an automation from the device page, it tells me no devics are available for automation.

Edit: got it, it was under entities, not devices, in automations. That's one more thing out of Node Red now, thanks!

[–] eutampieri@feddit.it 3 points 10 months ago

☺️

[–] feef@lemmy.world 3 points 10 months ago (1 children)

My favorite is turning on the bedroom lights when my alarm goes off :)

[–] FeloniousPunk@lemmy.today 2 points 10 months ago

I have a motion sensor mounted in front of the cat litter box, which triggers an exhaust fan and sends me a message - 🚨Cat Poo Alert! If you have a cat that eats/requires soft food, YOU KNOW.

[–] EarMaster@lemmy.world 3 points 10 months ago (1 children)

I have a motion sensor in the bedroom that turns the light on when you enter it (or leave it) and turns it off after some time once there is no motion detected anymore. But there is also a button right next to the door which disables the automation for 10 minutes for entering the bedroom at night when our youngest is already sleeping in the room.

Simple but very useful and even my wife likes it alot.

[–] corroded@lemmy.world 2 points 10 months ago

I have a motion sensor that turns on the bathroom light when you enter, then turns it off after no motion is detected for 5 minutes. Works great except for those long sessions on the toilet; nobody likes to poop in the dark. Now I have a door sensor on the bathroom so when no motion is detected, it turns off the lights after 5 minutes unless the door is closed, then it's 30 minutes. Much better than having to wave your arms around every 5 minutes when you're trying to take care of business.

[–] archengel@nichenerdery.duckdns.org 3 points 10 months ago

15 minutes before my alarm or my partner's goes off, the bedroom lights start to gradually fade on for the next half hour. A few minutes after that the HVAC gets reset to daytime temperatures. The hallway light turns on before we get out there, and if it is still dark outside (this time of year in Canada!) the entrance lights and kitchen lights also turn on ahead of time. Lastly it gets the dehumidifier started for the day and turns off Night Mode across all my automations.

Usually it results in us waking up gently, a bit before our alarms and we can turn them off without any blaring sounds.

[–] thomasloven@lemmy.world 3 points 10 months ago

https://youtu.be/OIkZWF5uGxk?si=FgGlXXJCn3q6540A

My goto selling point for Home Assistant is that I haven’t touched the outdoors light switch in 8 years.

[–] padook@feddit.nl 3 points 10 months ago (1 children)

The problem with a good running automation is you end up used to them, I forget they're even there most if the time.

I end up appreciating my once-in-awhile automations more. A couple times a month I need to get up extra early, skip my normal routine and go straight to work. But I'm American, this can't be done without coffee. The night before I prepare the coffee maker and scan an NFC on the top that turns off the plug and waits for my next alarm, then turns it back on. Once it runs it disables the automation, so I dont accidently burn the house down. Worth a million bucks

In the summer in the northeast US most evenings are cool enough to sleep with just a fan in the window. For the nights that stay too warm past bedtime I scan an NFC on my AC that triggers an automation to shutoff the AC and turn on the window fan at a specified outdoor temp. Saves on electricity and who doesn't love fresh air??

[–] corroded@lemmy.world 3 points 10 months ago

I end up appreciating my once-in-awhile automations more.

I can definitely understand this. One of my automations monitors a water sensor at the base of my water heater and under the kitchen sink (has leaked before). If it triggers, all my lights in the house turn on, any colored bulbs turn red, and they flash on/off each second. It hasn't triggered yet (thankfully) except for testing, but the peace of mind is fantastic.

[–] mhzawadi@lemmy.horwood.cloud 2 points 10 months ago (1 children)

I have door sensors on all the external doors, if a door is opened then turn the heating off. This helps over the winter when we have a firepit going and the kids are in and out every 5 minutes

[–] limelight79@lemm.ee 3 points 10 months ago

I have one of these set up for the dehumidifier in the garage - if the garage door is open for a few minutes, it turns off the dehumidifier. After the door is closed for a minute or two, it starts again.

[–] APassenger@lemmy.world 2 points 10 months ago (1 children)

Sunset and sunrise automations. Lights on and off, vacuum run times - all adapted to presence.

Made the litter-robot auto-repair when it enters trouble states. Better history of all elements controlled.

[–] corroded@lemmy.world 2 points 10 months ago (1 children)

I use a lot of sunset/sunrise automations, but one of my favorite is for the lights on the main floor of the house. They turn on with a motion/presence sensor when someone enters the room, but the intensity of the light and the color of the light are controlled by the sunrise/sunset times. During the day, they turn on at 100% brightness and a cool white; starting 1 hour before sunset and 1 hour before sunrise, they scale between 100%/cool white and 60%/warm white. You don't notice it unless you're really paying attention, but it really helps the house feel a lot more "cozy."

[–] APassenger@lemmy.world 1 points 10 months ago

I'm almost embarrassed to admit, I found an online image of the colors of the sky through the day, pasted it into excel, and then capture 160+ rgb values for the sunset. It was a tedious process, but no math got it right.

I set all those values (and a warmer and cooler set) in the script and then pass in the desired duration. Most nights we have a 45 minute sunset play out across 6 total lights. Three sets of values, so the bulbs don't match.

Starts as soft white ending in the darkest twilight blue my bulbs can provide. We remark on it regularly and I think it's helped ease us into the right frame of mind for sleep.

I run the same values in reverse for sunrise.

Clearly, its my favorite one.

[–] v1605@lemmy.world 1 points 10 months ago

I have all the TV inputs automated via voice commands. Eg. If you say "let's watch plex", tv turns on if off, input switches, HDMI switch changes, and Plex launches on the shield.

[–] navi@lemmy.tespia.org 1 points 10 months ago (1 children)

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

[–] corroded@lemmy.world 1 points 10 months ago

Thanks! I really enjoyed setting it up. The main part of the automation consists of two template sensors: One that monitors temperature, humidity, illuminance, and wind speed and produces an "apparent" temperature. The other monitors the apparent temperature, does all the math and colorspace conversions, and produces RGB values for the bulb. It was by far the most difficult automation to set up, but it was a great way to get better and programming templates.

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