Display Node-Red values in HA frontend

@Fredrik_Jacobsson wrote:

Hi,
I would like to display a Node-Red value in HA frontend.
But I can’t get it to work, I have done following.
Node-Red:

image410×565 14 KB

HA
configuration.yaml:

 - platform: template
    sensors:
      # sensor for smooth cloudiness
      smooth_cloudiness:
        friendly_name: "Smooth Cloudiness"
        unit_of_measurement: '%'
        value_template: "{{ state_attr('sensor.smooth_cloudiness', 'cloudiness') }}"

Get no value

image956×187 12 KB

What are I doing wrong?

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