How to count sensors based on attribute?

Configuration Frontend
1

Is it possible to count the number of sensors that has the same icon attribute?

Tried the template below in the editor but got

TypeError: object of type ‘generator’ has no len()

{{ states.binary_sensor | selectattr( 'icon', 'eq', 'mdi:cloud' ) | count }}

2

The correct filter for your use case is not count, but length.

https://jinja.palletsprojects.com/en/3.1.x/templates/#jinja-filters.length

3

Thanks, but I get the same result with length, should it be formatted differently?

{{ states.binary_sensor | selectattr( 'icon', '==' 'mdi:cloud' ) | length }}

And the following returns “0”

{{ states.binary_sensor | selectattr( 'icon', 'eq', 'mdi:cloud' ) | list | length }}

4

Try attributes.icon, maybe?

(You’ll need |list, yes…)

1 Like
5

That did it, thanks.

{{ states.binary_sensor | selectattr( 'attributes.icon', '==', 'mdi:cloud' ) | list | length }}

Tried using the above to create a template sensor, but it doesn’t seem to populate.

sensor:
  - platform: template
    sensors:
      cloud_sensors:
        friendly_name: "Cloud Sensors"
        value_template: "{{ states.binary_sensor | selectattr( 'state', '==', 'on' ) | selectattr( 'attributes.icon', '==', 'mdi:cloud' ) | list | length }}"

template:
  - sensor:
      - name: "Cloud Sensors"
        state: >
          {{ states.binary_sensor | selectattr( 'state', '==', 'on' ) | selectattr( 'attributes.icon', '==', 'mdi:cloud' ) | list | length }}