Sensor if statement - conditional maths syntax issue

Configuration
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#1

Hello all,

I’m struggling to code a template sensor to behave the way I’d like it to, and could use some help.

I have two sensors that I’m adding together. However, I want this to be conditional based on the state of an input number:

  - sensor:
      - name: "SoC at End of Charge"
        unique_id: "soc_end_of_charge"
        unit_of_measurement: 'kWh'
        device_class: energy
        state: "{{((states('sensor.soc_at_start_of_charge')| float(0) + states('sensor.soc_required_charge')| float(0))) | round(2) }}     
        {% set start = states('sensor.soc_at_start_of_charge') | float %}
        {% set end = states('sensor.soc_at_end_of_charge') | float %}
        {% set target = states('input_number.target_usable_soc') | float %}
        {{ (start - (1.75)) if (start > target) }}"

I’d like to add ‘sensor.soc_at_start_of_charge’ to ‘sensor.soc_required_charge’ so long as ‘input_number.target_usable_soc’ is larger than ‘sensor.soc_at_start_of_charge’.

If ‘input_number.target_usable_soc’ is smaller than ‘sensor.soc_at_start_of_charge’ then I’d like to subtract a fixed number (1.75) from ‘sensor.soc_at_start_of_charge’.

Currently the Template editor is coming up with errors:
ValueError: Template error: float got invalid input ‘unavailable’ when rendering template … but no default was specified

If you can point me in the right direction here that would be awesome.

Cheers

#2

Only quote single line templates. Use this > for multi-line templates.

  - sensor:
      - name: "SoC at End of Charge"
        unique_id: "soc_end_of_charge"
        unit_of_measurement: 'kWh'
        device_class: energy
        state: >
          {% if states('input_number.target_usable_soc')|float(0) > states('sensor.soc_at_start_of_charge')|float(0) %}
            {{ states('sensor.soc_at_start_of_charge')|float(0) + states('sensor.soc_required_charge_min_zero_max_nine')|float(0)
          {% else %}
            {{ states('sensor.soc_at_start_of_charge')|float(0) - 1.75 }}
          {% endif %}
        availability: >
          {{ states('sensor.soc_at_start_of_charge')|is_number and
             states('sensor.soc_required_charge_min_zero_max_nine')is_number and
             states('input_number.target_usable_soc')|is_number }}

Not you have not specified what you want to happen if input_number.target_usable_soc equals sensor.soc_at_start_of_charge. In the above exmple the else case is perfomed (subtract 1.75).

#3

Hi Tom thanks for that edit,

I’m getting this error from it in the template editor:

TemplateSyntaxError: expected token ‘end of print statement’, got ‘{’

I’m guessing that one is a quick fix to add a } somewhere…?

#4

Oops. Two of them:

- sensor:
      - name: "SoC at End of Charge"
        unique_id: "soc_end_of_charge"
        unit_of_measurement: 'kWh'
        device_class: energy
        state: >
          {% if states('input_number.target_usable_soc')|float(0) > states('sensor.soc_at_start_of_charge')|float(0) %}
            {{ states('sensor.soc_at_start_of_charge')|float(0) + states('sensor.soc_required_charge_min_zero_max_nine')|float(0) }}
          {% else %}
            {{ states('sensor.soc_at_start_of_charge')|float(0) - 1.75 }}
          {% endif %}
        availability: >
          {{ states('sensor.soc_at_start_of_charge')|is_number and
             states('sensor.soc_required_charge_min_zero_max_nine')is_number and
             states('input_number.target_usable_soc')|is_number }}
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#5

Fantastic!

I added a | in the second to last line before is_number and it’s working perfectly :slight_smile:

Thats a huge help my man, thank you for your time :boom: :100:

1 Like