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63 lines
2.2 KiB
ReStructuredText
63 lines
2.2 KiB
ReStructuredText
Home Assistant Sensor
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=====================
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.. seo::
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:description: Instructions for setting up Home Assistant sensors with ESPHome that import states from your Home Assistant instance.
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:image: home-assistant.svg
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The ``homeassistant`` sensor platform allows you to create sensors that import
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states from your Home Assistant instance using the :doc:`native API </components/api>`.
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: homeassistant
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name: "Temperature Sensor From Home Assistant"
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entity_id: sensor.temperature_sensor
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Entity state attributes can also be imported:
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.. code-block:: yaml
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# Example configuration entry
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sensor:
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- platform: homeassistant
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id: current_temperature
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entity_id: climate.living_room
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attribute: current_temperature
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.. note::
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This component is only for numeral states. If you want to import arbitrary text states
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from Home Assistant, use the :doc:`Home Assistant Text Sensor </components/text_sensor/homeassistant>`.
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Although you might not plan to *export* states from the node and you do not need an entity of the node
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in Home Assistant, this component still requires you to register the node under Home Assistant. See:
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:doc:`Getting started with Home Assistant </guides/getting_started_hassio>`
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Configuration variables:
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------------------------
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- **entity_id** (**Required**, string): The entity ID to import from Home Assistant.
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- **attribute** (*Optional*, string): The name of the state attribute to import from the
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specified entity. The entity state is used when this option is omitted.
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- All other options from :ref:`Sensor <config-sensor>`.
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.. note::
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The sensors implemented by this component are by default ``internal``, to avoid exporting them back to
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Home Assistant. Should you still want to do that (eg. because you use ESPHome's very efficient filters
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on them) you need to specifically configure ``internal: false``. Also, ``state_class``, ``unit_of_measurement``
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are not inherited from the imported sensor so you need to set them manually.
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See Also
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--------
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- :ref:`sensor-filters`
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- :ref:`automation`
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- :apiref:`homeassistant/sensor/homeassistant_sensor.h`
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- :ghedit:`Edit`
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