homeassistant

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

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

Maybe an option for every other day too

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

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

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

i dont have a way to see if the fan is on currently. but it gets around natural humidity swings by comparing it to the 1hour average.
that means if it creeps up to 70% humidity, it wont think im in the shower until it hits 78%. It has to be a sudden change because of this logic

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

if/when you can afford it, mmwave precense sensors are way better, mine can see me through the shower curtain standing still

Air conditioning

weather has been all over the place lately

Here is my Automation:

alias: Update Last Shower Time
description: ""
triggers:
  - entity_id: binary_sensor.showering
    from: "on"
    to: "off"
    trigger: state
actions:
  - data:
      datetime: "{{ now() }}"
    action: input_datetime.set_datetime
    target:
      entity_id: input_datetime.last_shower

You need to create a 'DateTime' helper called "Last Shower" This is where the last shower time will be stored (and can be changed)

You need a 'Statistics' Helper too. Call it "Average Bathroom Humidity" Make it "average linear" then set Max Age to 1 hour. (leave other options default)

Make these template sensors too:

Template Binary Sensor called "Showering":

{{ (states('sensor.bathroom_sensor_humidity')|float - states('sensor.average_bathroom_humidity')|float) > 9 }}

Template Sensor called "Time Since Last Shower":

% set diff = now() - as_datetime(states('input_datetime.last_shower')).astimezone() %}
{% set days = diff.days %}
{% set hours = (diff.seconds // 3600) %}
{% if days > 0 %}
  {{ days }} day{{ 's' if days > 1 }} {{ hours }} hour{{ 's' if hours != 1 }}
{% else %}
  {{ hours }} hour{{ 's' if hours != 1 }}
{% endif %}

Let me know if you hit any snags!

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.

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

Not everyone is the same.

I agree, my skin does too

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.