Factor in soil humidity to runtime adjustment? about irrigation-v5 HOT 4 CLOSED

You can create a template sensor here is an example (untested) check out this https://www.home-assistant.io/integrations/template/ for more detail.

template:
  - sensor:
      - name: "Soil Humidity Adjuster"
        state: >
          {% set moisture = states('sensor.soil_humidty') | float %}
          {{ ((100 - moisture) / 100) | round(1, default=0) }}

This assumes:

• that your sensor provides a value 0-100
• sensor.soil_humidty is your sensor name
• the new sensor will simply create an inverse value the closer to 100% the lower adjustment value.

Once you have a value that is sensible, assign it to the zone adjustment option and the irrigation watering time/volume will be modified by the ratio applied.

I would be interested in seeing where you end up with this, I could add your solution into my documentation once you have it working.

from irrigation-v5.

Thanks for the reply! Dumb question but what metric should i use to determine how long i should be setting the runtime for in the first place? I've got it at 10 mins right now just for a round number but i have no idea what it should actually be. As for the adjuster(s), here's what i've got so far (apologies for my overly-descriptive entity names - that's me coding around my ADHD-brain):

Soil humidity adjuster:

    - name: "irrigation_zone1_soil_humidity_adjuster"
      state: >
        {% set moisture = states('sensor.front_porch_climate_flower_bed_soil_sensor_left_humidity') | float %}
        {{ ((100 - moisture) / 100) | round(1, default=0) }}

OWMHistory rain adjuster (sensor.openweathermap_climate_wateringfactor):

{{

  [(10 
  - day0rain 
  - day1rain*0.5
  - day2rain*0.25
  - forecast1rain*forecast1pop*0.5
  - forecast2rain*forecast2pop*0.25)/10
  ,0]|max
}}

Then i have a helper set up to average the values of "sensor.irrigation_zone1_soil_humidity_adjuster" and "sensor.openweathermap_climate_wateringfactor", which gives me a new sensor called "sensor.helper_irrigation_zone1_overall_adjustment_factor". That last one is the one i apply to the "zone adjustment" option.

The schedule is set to fire at 10AM, so i'll let you know how it goes! One thing that may be useful to end-users is to also have the integration surface a "program adjusted runtime", just so as part of the card you can see both the set time for the program and the adjusted time for the program at a glance.

Thanks again for all your help!

from irrigation-v5.

Update: this worked well this morning! I had it set for 10 mins, it fired off at the scheduled time and ran about 8.5 mins. Now i just have to figure out if something's up with my soil that it's not absorbing moisture, or if the sensor's reporting wrong, or if it's really just that dry that 8 mins of constant watering only raised the soil humidity like 1.5% :)

from irrigation-v5.

I'm glad to help, maybe you just need to calibrate the sensor, some sensors have a potentiometer that can adjust the sensitivity , can't beat the does it feel wet test 😉 or you can adjust the range e.g. (??- moisture)/??? to affect a more rapid change

from irrigation-v5.