Attributes of an unavailable sensor

Configuration
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1

I have a TP-Link mesh network at home. It allows me to see who is in which room. Apparently, devices regularly disconnect, making the devices in that room unavailable.
See images.

Home
Home699×212 15.4 KB

Unavailable

If the device_tracker is unavailable, certain attributes disappear! This causes the attribute for my other sensor to become null.
See image.
Sensor Home

Sensor unav

Is it possible that if the device_tracker becomes unavailable, the attribute for my sensor won’t change?
See image.

Can anyone help me? Thanks for all the replies!

2

You can try something like this:

- name: Your sensor with copied stuff
  attributes:
    location: >-
      {% set the_source_location = state_attr('device_tracker.the_source_tracker', 'location') %}
      {{ this.attributes.get('location','unknown') if the_source_location is none else the_source_location }}
  • this.attributes.get('location','unknown') reads the current value of the ‘location’ attribute being evaluated, defaulting to ‘unknown’ in case the value is null/none.
  • is none tests the source attribute for null
3

Thanks for your reply!! Works perfectly.