Template input 230 if sensor value is 0 or unavaliable

Energy
1

Hello all, my first post on the forum!

I’m struggling to code my template to show a default voltage if sensor input is 0 or unavailable, the sensor is giving milliamperes value. Here’s what I have so far in my template.yaml:

  - sensor:
      - name: "Spenning VVB"
        unique_id: 23456765434
        unit_of_measurement: "V"
        device_class: energy
        state_class: measurement
        state: >
          {% set state1 = states('sensor.vvb_strom') %}
          {% if (state1) == 0 %}
            230
          {% else %}
            {{ ((state1|float * 27.2674)/1000 | float ) | round(2) }}
          {% endif %}

This seems to give the else statement even when sensor is 0, however I want it to show 230 if the sensor is 0.
I would also like it to show 230 if the sensor is unavailable, however I haven’t figured a way to script it.

If anyone could point me in the right direction it would be much appreciated.

Frode.

2 
  - sensor:
      - name: "Spenning VVB"
        unique_id: 23456765434
        unit_of_measurement: "V"
        device_class: voltage ### changed
        state_class: measurement
        state: >
          {% set state1 = states('sensor.vvb_strom')|float(0) %}
          {% if state1 == 0 %}
            230
          {% else %}
            {{ ( state1 * 27.2674/1000 ) | round(2) }}
          {% endif %}
3

Thanks tom_l,

I changed device class, however it still reads back “0” if sensor is 0.

4

Figured it out for returning ‘230’ when ‘0’:

  - sensor:
      - name: "Spenning VVB"
        unique_id: 23456765434
        unit_of_measurement: "V"
        device_class: voltage ### changed
        state_class: measurement
        state: >
          {% set state1 = states('sensor.vvb_strom')|float(0) %}
          {% if (state1, '0') %} ### 2nd change
            230
          {% else %}
            {{ ( state1 * 27.2674/1000 ) | round(2) }}
          {% endif %}

Now only the ‘unavaliable’ condition remains.

5

That state isn’t correct. That if statement will always pass, you’ll always get a result of 230. Tom’s template is correct, you should be using that.

6

Yes, I tested it now, it is now always ‘230’.
My original and Tom’s was giving ‘0’ when sensor is ‘0’, and a wanted floating value based on current from sensor when sensor was >‘0’.

Do you have any suggestion to make it work?

7

I also changed the template.

8

Ahh, thanks, yes, your solution is indeed working, my eyes was too fast.

Thanks for all help, will this also handle if the sensor becomes unavailable?

Tested, it works!

9

Yes unavailable will also be reported as 0. You can change it to be unavailable if you want to by adding this availability template.

availability: "{{ states('sensor.vvb_strom')|is_number }}"