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118 lines
3.8 KiB
ReStructuredText
118 lines
3.8 KiB
ReStructuredText
Template Cover
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==============
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.. seo::
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:description: Instructions for setting up template covers in ESPHome.
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:image: description.png
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The ``template`` cover platform allows you to create simple covers out of just a few
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actions and a value lambda. Once defined, it will automatically appear in Home Assistant
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as a cover and can be controlled through the frontend.
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.. figure:: images/cover-ui.png
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:align: center
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:width: 75.0%
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.. code-block:: yaml
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# Example configuration entry
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cover:
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- platform: template
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name: "Template Cover"
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lambda: |-
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if (id(top_end_stop).state) {
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return cover::COVER_OPEN;
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} else {
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return cover::COVER_CLOSED;
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}
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open_action:
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- switch.turn_on: open_cover_switch
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close_action:
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- switch.turn_on: close_cover_switch
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stop_action:
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- switch.turn_on: stop_cover_switch
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optimistic: true
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Possible return values for the optional lambda:
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- ``return cover::COVER_OPEN;`` if the cover should be reported as OPEN.
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- ``return cover::COVER_CLOSED;`` if the cover should be reported as CLOSED.
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- ``return {};`` if the last state should be repeated.
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Configuration variables:
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------------------------
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- **name** (**Required**, string): The name of the cover.
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- **lambda** (*Optional*, :ref:`lambda <config-lambda>`):
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Lambda to be evaluated repeatedly to get the current state of the cover.
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- **open_action** (*Optional*, :ref:`Action <config-action>`): The action that should
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be performed when the remote (like Home Assistant's frontend) requests the cover to be opened.
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- **close_action** (*Optional*, :ref:`Action <config-action>`): The action that should
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be performed when the remote requests the cover to be closed.
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- **stop_action** (*Optional*, :ref:`Action <config-action>`):
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- **optimistic** (*Optional*, boolean): Whether to operate in optimistic mode - when in this mode,
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any command sent to the template cover will immediately update the reported state and no lambda
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needs to be used. Defaults to ``false``.
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- **assumed_state** (*Optional*, boolean): Whether the true state of the cover is not known.
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This will make the Home Assistant frontend show buttons for both OPEN and CLOSE actions, instead
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of hiding one of them. Defaults to ``false``.
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- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
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Advanced options:
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- **internal** (*Optional*, boolean): Mark this component as internal. Internal components will
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not be exposed to the frontend (like Home Assistant). Only specifying an ``id`` without
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a ``name`` will implicitly set this to true.
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- If MQTT enabled, all other options from :ref:`MQTT Component <config-mqtt-component>`.
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.. _cover-template-publish_action:
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``cover.template.publish`` Action
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---------------------------------
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You can also publish a state to a template cover from elsewhere in your YAML file
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with the ``cover.template.publish`` action.
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.. code-block:: yaml
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# Example configuration entry
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cover:
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- platform: template
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name: "Template Cover"
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id: template_cov
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# in some trigger
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on_...:
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- cover.template.publish:
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id: template_cov
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state: OPEN
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# Templated
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- cover.template.publish:
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id: template_cov
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state: !lambda 'return cover::COVER_OPEN;'
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Configuration options:
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- **id** (**Required**, :ref:`config-id`): The ID of the template cover.
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- **state** (**Required**, :ref:`templatable <config-templatable>`):
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The state to publish. One of ``OPEN``, ``CLOSED``.
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.. note::
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This action can also be written in lambdas:
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.. code-block:: cpp
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id(template_cov).publish_state(cover::COVER_OPEN);
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See Also
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--------
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- :doc:`/components/cover/index`
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- :ref:`automation`
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- :doc:`/cookbook/garage-door`
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- :apiref:`cover/template_cover.h`
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- :ghedit:`Edit`
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