this post was submitted on 23 Mar 2026

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104

"Time Since Last Shower" tracking (lemmy.world)

submitted 18 hours ago by 4lan@lemmy.world to c/homeassistant@lemmy.world

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I constantly forget to take showers due to depression. I know I'm not the only one 😂 summer is early here in Texas and I don't want to be the stinky dude

Uses the humidity readings of my bathroom to determine whether I was in the shower:

A running 1 hour average of the bathroom humidity is measured.
If the current humidity is 8% above the average, it is triggered as "wet".
Then it marks down the last time, and then converts that to "days & hours since" last shower.

I have a badge at the top of my main dashboard that will let me know how long it's been. It's already been useful. If I see anything over 2 days I know it's past time for a shower

I got a false positive from washing my hands when it was set to trigger by 5% increases, so I changed it to 8%.

Happy to share my code if anyone wants to do the same!

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[–] QueenMidna@lemmy.ca 1 points 5 hours ago (1 children)

Could you not also tie it into if the ceiling fan is running? Or a flow sensor on the shower?

I'm just thinking of natural humidity and how that might skew the numbers.

That's a really cool and neat way to pull it off. I helped myself shower more by attaching a NFC tag to the shower wall and have an alarm my phone that can only be turned off by tapping the tag. The thinking is that I might as well shower while I'm there.

[–] pupbiru@aussie.zone 1 points 1 hour ago

i have a humidity sensor in the bathroom that turns the ceiling fan on, and the way that works is that it compares the bathroom humidity to humidity in other areas of the house, so it takes into account humid/dry days automatically

[–] konim@sopuli.xyz 1 points 8 hours ago

Would you be able to share your code? I have the same problem possibly due to undiagnosed ADHD instead. I've been basically guilt tripping myself (or a parent has) to motivate myself to shower my whole life. Thanks for posting this, it seems like a way more fun way where I can be nerdy about it and still be a functional human being.

[–] jol@discuss.tchncs.de 29 points 17 hours ago (4 children)

If you want to hijack your depressed reward system further, you could try to show a streak of how many days you've gone without missing a shower.

[–] brisk@aussie.zone 6 points 12 hours ago

For me streaks are a double edged sword; if I break a streak then the stat becomes a disincentive

[–] Azzu@lemmy.dbzer0.com 12 points 17 hours ago (1 children)

Why not try a challenge for how long you can go without a shower?

[–] jol@discuss.tchncs.de 2 points 13 hours ago

I think that's the opposite of what OP wants but still a nice technical challenge nonetheless

[–] Kowowow@lemmy.ca 3 points 16 hours ago

Maybe an option for every other day too

[–] 4lan@lemmy.world 1 points 16 hours ago (1 children)

Good idea! I aim for 2 days. My skin and hair hate Texas water

[–] HeyThisIsntTheYMCA@lemmy.world 1 points 11 hours ago

dude when i lived in texas i had to shower twice a day i got so greasy

[–] HeyThisIsntTheYMCA@lemmy.world 2 points 11 hours ago (1 children)

texas? 68% humidity? how did you get it that low

[–] ripcord@lemmy.world 3 points 11 hours ago

Air conditioning

[–] amelore@slrpnk.net 7 points 17 hours ago (1 children)

I have also checked what time I showered with the logs of the humidity sensor. It's a small bathroom so humidity goes from like 30% to 50% in 2-3 minutes and to 60% by the time I'm done showering. Normal humidity here is 25 to 40. So I just put the trigger on 55%, no average or comparing with another room necessary.

My use case was triggering the existing ventilation but I haven't gotten around to changing the switch for that yet.

[–] 4lan@lemmy.world 2 points 16 hours ago

I'd like to do the same eventually. I rent though so it would have to be reversible

[–] ThePantser@sh.itjust.works 2 points 18 hours ago (1 children)

Could make it more accurate by using a moisture sensor and placing the prongs in the shower. Could also just add a smart button on the show door/wall that you press when you shower to reset the timer.

I have a water shutoff that I installed to cut my kids showers off, they have to press a button to turn on the shower valve. So it runs for 10min and then cuts off. Hmm my son forgets to shower often so maybe I should do something similar to remind him.

[–] 4lan@lemmy.world 1 points 16 hours ago

I might look into that if this ends up giving false positives or something. So far it's working great

I do the ability to manually change the date and time of last shower. I had to do that when tweaking the sensitivity

[–] 4lan@lemmy.world 2 points 18 hours ago* (last edited 18 hours ago)

Also! I was able to use this to make my PIR sensor presence detection more accurate

before it would not see me in my shower and think im not there. Now that automation only triggers if the bathroom is also 'dry'

[–] avidamoeba@lemmy.ca -4 points 17 hours ago* (last edited 17 hours ago) (3 children)

Frequent showers are overrated, especially when done with soap which strips your skin microbiota. 😅

Great automation tho!

[–] gibmiser@lemmy.world 6 points 17 hours ago

Not everyone is the same.

[–] walden@wetshav.ing 2 points 16 hours ago

I half agree with you. I shower daily but only use soap on my pits and bits. If I've done yardwork or exercise I'll hit everything with soap, though.

[–] 4lan@lemmy.world 2 points 16 hours ago (1 children)

I agree, my skin does too

[–] avidamoeba@lemmy.ca 1 points 16 hours ago* (last edited 16 hours ago)

My skin didn't appear to give a shit up until my mid-30s. Perhaps I just didn't notice cause it wasn't bad enough. These days a proper bath with soap produces dry and itchy skin. That's why I've switched to mostly water with mild soap only for the smell-accumulating regions. I also haven't had any fungal skin overgrowth since then. Basically balance smell control with skin health. My 20-year-old self would be disgusted by my 40-year-old one. 😅

That said, am married and wife is happy with the total VOC output so I have the privilege to not have to cater to other standards.

[–] Moses@discuss.tchncs.de 0 points 18 hours ago (2 children)

What sensors are you using for humidity?

[–] walden@wetshav.ing 3 points 17 hours ago

You didn't ask me, but as someone who has fiddled with this things my favorite sensor is the BME680, specifically the board that Adafruit sells. It costs more than other sensors, but that's because it's the best. It also does temperature, atmospheric pressure, and measures VOC. I think you can even use it to detect when someone takes a poo, but I haven't tried.

[–] 4lan@lemmy.world 2 points 18 hours ago

just the DHT-22 running on a Wemos D1.
I set it up using ESPhome