docs: necessary registration of node in HA (#741)

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Torwag 2020-12-21 00:45:30 +01:00 committed by GitHub
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@ -20,6 +20,10 @@ states from your Home Assistant instance using the :doc:`native API </components
This component is only for numeral states. If you want to import arbitrary text states
from Home Assistant, use the :doc:`Home Assistant Text Sensor </components/text_sensor/homeassistant>`.
Albeit you might not plan to __export__ states from the node and you do not need an entity of the node
in Home Assistant, this component still requires you to register the node under Home Assistant. See:
:doc:`Getting started with Hassio </guides/getting_started_hassio>`
Importing attributes is currently not supported, but you can create template sensors in Home Assistant
that return the attribute of a sensor and then import the template sensor here.