esphome-docs/esphomeyaml/components/switch/index.rst
2018-06-07 15:55:31 +02:00

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Switch Component
================
The ``switch`` domain includes all platforms that should show up like a
switch and can only be turned ON or OFF.
.. _config-switch:
Base Switch Configuration
-------------------------
.. code:: yaml
switch:
- platform: ...
name: "Switch Name"
icon: "mdi:restart"
Configuration variables:
- **name** (**Required**, string): The name of the switch.
- **icon** (*Optional*, icon): Manually set the icon to use for the
sensor in the frontend.
- **inverted** (*Optional*, boolean): Whether to invert the binary
state, i.e. report ON states as OFF and vice versa. Defaults
to ``False``.
- All other options from :ref:`MQTT Component <config-mqtt-component>`.
.. _switch-toggle_action:
``switch.toggle`` Action
^^^^^^^^^^^^^^^^^^^^^^^^
This action toggles a switch with the given ID when executed.
.. code:: yaml
on_...:
then:
- switch.toggle:
id: relay_1
.. _switch-turn_on_action:
``switch.turn_on`` Action
^^^^^^^^^^^^^^^^^^^^^^^^^
This action turns a switch with the given ID on when executed.
.. code:: yaml
on_...:
then:
- switch.turn_on:
id: relay_1
.. _switch-turn_off_action:
``switch.turn_off`` Action
^^^^^^^^^^^^^^^^^^^^^^^^^^
This action turns a switch with the given ID off when executed.
.. code:: yaml
on_...:
then:
- switch.turn_off:
id: relay_1
lambda calls
""""""""""""
From :ref:`lambdas <config-lambda>`, you can call several methods on all covers to do some
advanced stuff (see the full :doc:`API Reference </api/cover/index>` for more info).
- ``publish_state()``: Manually cause the switch to publish a new state and store it internally.
If it's different from the last internal state, it's additionally published to the frontend.
.. code:: yaml
// Within lambda, make the switch report a specific state
id(my_switch).publish_state(false);
id(my_switch).publish_state(true);
- ``state``: Retrieve the current state of the switch.
.. code:: yaml
// Within lambda, get the switch state and conditionally do something
if (id(my_switch).value) {
// Switch is ON, do something here
} else {
// Switch is OFF, do something else here
}
- ``write_state()``: Manually cause the cover to go into an OFF/ON state from code.
Similar to the ``switch.turn_on`` and ``switch.turn_off`` actions,
but can be used in complex lambda expressions.
.. code:: yaml
id(my_switch).write_state(false);
id(my_switch).write_state(true);
// Toggle the switch
id(my_switch).write_state(!id(my_switch).state);
See Also
^^^^^^^^
- :doc:`API Reference </api/switch/index>`
- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/switch/index.rst>`__
.. toctree::
:maxdepth: 1
gpio.rst
shutdown.rst
output.rst
ir_transmitter.rst
restart.rst
template.rst