Binary Sensor Component ======================= .. seo:: :description: Information about the base representation of all binary sensors. :image: folder-open.svg With ESPHome you can use different types of binary sensors. They will automatically appear in the Home Assistant front-end and have several configuration options. .. _config-binary_sensor: Base Binary Sensor Configuration -------------------------------- All binary sensors have a platform and an optional device class. By default, the binary will chose the appropriate device class itself, but you can always override it. .. code-block:: yaml binary_sensor: - platform: ... device_class: motion Configuration variables: - **name** (**Required**, string): The name for the binary sensor. .. note:: If you have a :ref:`friendly_name ` set for your device and you want the binary sensor to use that name, you can set ``name: None``. - **device_class** (*Optional*, string): The device class for the sensor. See https://developers.home-assistant.io/docs/core/entity/binary-sensor/#available-device-classes for a list of available options. - **icon** (*Optional*, icon): Manually set the icon to use for the binary sensor in the frontend. - **filters** (*Optional*, list): A list of filters to apply on the binary sensor values such as inverting signals. See :ref:`binary_sensor-filters`. Automations: - **on_press** (*Optional*, :ref:`Automation `): An automation to perform when the button is pressed. See :ref:`binary_sensor-on_press`. - **on_release** (*Optional*, :ref:`Automation `): An automation to perform when the button is released. See :ref:`binary_sensor-on_release`. - **on_state** (*Optional*, :ref:`Automation `): An automation to perform when a state change is published. See :ref:`binary_sensor-on_state`. - **on_click** (*Optional*, :ref:`Automation `): An automation to perform when the button is held down for a specified period of time. See :ref:`binary_sensor-on_click`. - **on_double_click** (*Optional*, :ref:`Automation `): An automation to perform when the button is pressed twice for specified periods of time. See :ref:`binary_sensor-on_double_click`. - **on_multi_click** (*Optional*, :ref:`Automation `): An automation to perform when the button is pressed in a specific sequence. See :ref:`binary_sensor-on_multi_click`. Advanced options: - **internal** (*Optional*, boolean): Mark this component as internal. Internal components will not be exposed to the frontend (like Home Assistant). Only specifying an ``id`` without a ``name`` will implicitly set this to true. - **disabled_by_default** (*Optional*, boolean): If true, then this entity should not be added to any client's frontend, (usually Home Assistant) without the user manually enabling it (via the Home Assistant UI). Requires Home Assistant 2021.9 or newer. Defaults to ``false``. - **publish_initial_state** (*Optional*, boolean): If true, then the sensor will publish its initial state at boot or when HA first connects, depending on the platform. This means that any applicable triggers will be run. Defaults to ``false``. - **entity_category** (*Optional*, string): The category of the entity. See https://developers.home-assistant.io/docs/core/entity/#generic-properties for a list of available options. Requires Home Assistant 2021.11 or newer. Set to ``""`` to remove the default entity category. - If MQTT enabled, all other options from :ref:`MQTT Component `. .. _binary_sensor-filters: Binary Sensor Filters --------------------- With binary sensor filters you can customize how ESPHome handles your binary sensor values even more. They are similar to :ref:`Sensor Filters `. All filters are processed in a pipeline. This means all binary sensor filters are processed in the order given in the configuration (so order of these entries matters!) .. code-block:: yaml binary_sensor: - platform: ... # ... filters: - invert: - delayed_on: 100ms - delayed_off: 100ms # Templated, delays for 1s (1000ms) only if a reed switch is active - delayed_on_off: !lambda "if (id(reed_switch).state) return 1000; else return 0;" - delayed_on_off: time_on: 10s time_off: !lambda "if (id(reed_switch).state) return 1000; else return 0;" - autorepeat: - delay: 1s time_off: 100ms time_on: 900ms - delay: 5s time_off: 100ms time_on: 400ms - lambda: |- if (id(other_binary_sensor).state) { return x; } else { return {}; } ``invert`` ********** Simple filter that just inverts every value from the binary sensor. ``delayed_on`` ************** (**Required**, time, :ref:`templatable `): When a signal ON is received, wait for the specified time period until publishing an ON state. If an OFF value is received while waiting, the ON action is discarded. Or in other words: Only send an ON value if the binary sensor has stayed ON for at least the specified time period. When using a lambda call, you should return the delay value in milliseconds. **Useful for debouncing push buttons**. ``delayed_off`` *************** (**Required**, time, :ref:`templatable `): When a signal OFF is received, wait for the specified time period until publishing an OFF state. If an ON value is received while waiting, the OFF action is discarded. Or in other words: Only send an OFF value if the binary sensor has stayed OFF for at least the specified time period. When using a lambda call, you should return the delay value in milliseconds. **Useful for debouncing push buttons**. ``delayed_on_off`` ****************** Only send an ON or OFF value if the binary sensor has stayed in the same state for at least the specified time period. This filter uses two time delays: on and off. If the delays are equal, then you can configure the filter in short form by passing the time parameter: .. code-block:: yaml binary_sensor: - platform: ... # ... filters: - delayed_on_off: 1s (**Required**, time, :ref:`templatable `): ON and OFF delay. When using a lambda call, you should return the delay value in milliseconds. **Useful for debouncing binary switches**. If the delays are different, then you need to pass them as in the example below: .. code-block:: yaml binary_sensor: - platform: ... # ... filters: - delayed_on_off: time_on: 10s time_off: 20s Configuration variables: - **time_on** (**Required**, time, :ref:`templatable `): ON delay. - **time_off** (**Required**, time, :ref:`templatable `): OFF delay. When using a lambda call, you should return the delay value in milliseconds. ``autorepeat`` ************** A filter implementing the autorepeat behavior. The filter is parametrized by a list of timing descriptions. When a signal ON is received it is passed to the output and the first ``delay`` is started. When this interval expires the output is turned OFF and toggles using the ``time_off`` and ``time_on`` durations for the OFF and ON state respectively. At the same time the ``delay`` of the second timing description is started and the process is repeated until the list is exhausted, in which case the timing of the last description remains in use. Receiving an OFF signal stops the whole process and immediately outputs OFF. The example thus waits one second with the output being ON, toggles it once per second for five seconds, then toggles twice per second until OFF is received. An ``autorepeat`` filter with no timing description is equivalent to one timing with all the parameters set to default values. Configuration variables: - **delay** (*Optional*, :ref:`config-time`): Delay to proceed to the next timing. Defaults to ``1s``. - **time_off** (*Optional*, :ref:`config-time`): Interval to hold the output at OFF. Defaults to ``100ms``. - **time_on** (*Optional*, :ref:`config-time`): Interval to hold the output at ON. Defaults to ``900ms``. ``lambda`` ********** Specify any :ref:`lambda ` for more complex filters. The input value from the binary sensor is ``x`` and you can return ``true`` for ON, ``false`` for OFF, and ``{}`` to stop the filter chain. Binary Sensor Automation ------------------------ The triggers for binary sensors in ESPHome use the lingo from computer mouses. For example, a ``press`` is triggered in the first moment when the button on your mouse is pushed down. You can access the current state of the binary sensor in :ref:`lambdas ` using ``id(binary_sensor_id).state``. .. _binary_sensor-on_press: ``on_press`` ************ This automation will be triggered when the button is first pressed down, or in other words on the leading edge of the signal. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_press: then: - switch.turn_on: relay_1 Configuration variables: See :ref:`Automation `. .. _binary_sensor-on_release: ``on_release`` ************** This automation will be triggered when a button press ends, or in other words on the falling edge of the signal. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_release: then: - switch.turn_off: relay_1 Configuration variables: See :ref:`Automation `. .. _binary_sensor-on_state: ``on_state`` ************ This automation will be triggered when a new state is received (and thus combines ``on_press`` and ``on_release`` into one trigger). The new state will be given as the variable ``x`` as a boolean and can be used in :ref:`lambdas `. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_state: then: - switch.turn_off: relay_1 Configuration variables: See :ref:`Automation `. .. _binary_sensor-on_click: ``on_click`` ************ This automation will be triggered when a button is pressed down for a time period of length ``min_length`` to ``max_length``. Any click longer or shorter than this will not trigger the automation. The automation is therefore also triggered on the falling edge of the signal. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_click: min_length: 50ms max_length: 350ms then: - switch.turn_off: relay_1 Configuration variables: - **min_length** (*Optional*, :ref:`config-time`): The minimum duration the click should last. Defaults to ``50ms``. - **max_length** (*Optional*, :ref:`config-time`): The maximum duration the click should last. Defaults to ``350ms``. - See :ref:`Automation `. .. note:: Multiple ``on_click`` entries can be defined like this (see also :ref:`binary_sensor-on_multi_click` for more complex matching): .. code-block:: yaml binary_sensor: - platform: gpio # ... on_click: - min_length: 50ms max_length: 350ms then: - switch.turn_off: relay_1 - min_length: 500ms max_length: 1000ms then: - switch.turn_on: relay_1 .. _binary_sensor-on_double_click: ``on_double_click`` ******************* This automation will be triggered when a button is pressed down twice, with the first click lasting between ``min_length`` and ``max_length``. When a second leading edge then happens within ``min_length`` and ``max_length``, the automation is triggered. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_double_click: min_length: 50ms max_length: 350ms then: - switch.turn_off: relay_1 Configuration variables: - **min_length** (*Optional*, :ref:`config-time`): The minimum duration the click should last. Defaults to ``50ms``. - **max_length** (*Optional*, :ref:`config-time`): The maximum duration the click should last. Defaults to ``350ms``. - See :ref:`Automation `. .. _binary_sensor-on_multi_click: ``on_multi_click`` ****************** This automation will be triggered when a button is pressed in a user-specified sequence. .. code-block:: yaml binary_sensor: - platform: gpio # ... on_multi_click: - timing: - ON for at most 1s - OFF for at most 1s - ON for 0.5s to 1s - OFF for at least 0.2s then: - logger.log: "Double-Clicked" Configuration variables: - **timing** (**Required**): The timing of the multi click. This uses a language-based grammar using these styles: - `` for