mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-10 10:11:29 +01:00
265 lines
11 KiB
ReStructuredText
265 lines
11 KiB
ReStructuredText
Feedback Cover
|
|
==============
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up feedback covers in ESPHome.
|
|
|
|
The ``feedback`` cover platform allows you to create covers with position control that
|
|
can optionally have feedback from sensors to detect the fully-open and fully-closed states (endstops),
|
|
and from sensors to detect actual movement (opening/closing). In all the cases the current
|
|
position is approximated with the time the cover has been moving in a direction.
|
|
|
|
It supports *open*, *close*, *stop* and *toggle* actions. Tilt control is not supported.
|
|
|
|
.. figure:: images/more-info-ui.png
|
|
:align: center
|
|
:width: 50.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
cover:
|
|
- platform: feedback
|
|
name: "Gate"
|
|
|
|
open_action:
|
|
- switch.turn_on: open_cover_switch
|
|
open_duration: 2.1min
|
|
open_endstop: open_endstop_binary_sensor
|
|
open_sensor: open_movement_binary_sensor
|
|
|
|
close_action:
|
|
- switch.turn_on: close_cover_switch
|
|
close_duration: 2min
|
|
close_endstop: close_endstop_binary_sensor
|
|
close_sensor: close_movement_binary_sensor
|
|
|
|
stop_action:
|
|
- switch.turn_off: open_cover_switch
|
|
- switch.turn_off: close_cover_switch
|
|
|
|
Use Cases
|
|
---------
|
|
|
|
It is a versatile cover that can accommodate for a number of DIY setups, or monitoring an externally controlled cover:
|
|
|
|
Time-Based
|
|
**********
|
|
|
|
Simplest case, when no sensors are available. The state is thus assumed.
|
|
|
|
It is a drop-in replacement of :doc:`/components/cover/time_based`
|
|
|
|
Endstop Sensors
|
|
***************
|
|
|
|
For cases where there are endstops at one or both ends of the cover to detect the fully-open and fully-closed states.
|
|
When any of these endstops are reached, an actual state is read and updated and the cover optionally
|
|
stopped (via ``stop_action``). The state is not assumed.
|
|
|
|
The extension also handles the case where the cover has builtin endstops, which stops the movement, independently to
|
|
the component's logic. In this case, when the cover is fully closed (either if timed based or sensor based) the
|
|
``stop_action`` is not triggered.
|
|
|
|
It is a drop-in replacement of :doc:`/components/cover/endstop`.
|
|
|
|
Movement Sensors
|
|
****************
|
|
|
|
If movement feedback is available, the cover no longer operates in *optimistic mode* (assuming that movement starts
|
|
as soon as an action is triggered) and can also react to commands issued to cover from an external control and still
|
|
keep states in sync (useful for "smartization" of an existing cover).
|
|
|
|
When there are no specific endstop sensors, and if the cover has builtin endstops and no external control logic,
|
|
these movement sensors can optionally be use to infer the endstop state.
|
|
When the movement stops (with no stop action being requested) it is assumed that it was caused by
|
|
the builtin endstops, and so the close/open state (according to current direction) was reached.
|
|
This function is activated setting ``infer_endstop`` to True.
|
|
|
|
It can be used to replace a :doc:`/components/cover/current_based`, with some modifications in the yaml. See :ref:`migrating_current_based`
|
|
|
|
Safety Features
|
|
---------------
|
|
|
|
To protect the cover hardware from damage, some safety options are available:
|
|
|
|
- *Max duration*, to protect from faulty endstops
|
|
- *Direction change wait time*, like an interlock wait time, to protect motors from sudden direction changes
|
|
- *Obstacle sensors* and *rollback*, possibility to stop and optionally rollback the cover when some external sensors detects an obstacle
|
|
(it might be a sensor for high current consumption or an infrared light detecting an obstruction in the path).
|
|
|
|
|
|
Configuration variables
|
|
-----------------------
|
|
|
|
- **stop_action** (**Required**, :ref:`Action <config-action>`): The action that should
|
|
be performed when the remote requests the cover to be closed or an endstop is reached.
|
|
|
|
Open options:
|
|
|
|
- **open_action** (**Required**, :ref:`Action <config-action>`): The action that should
|
|
be performed when the remote requests the cover to be opened.
|
|
- **open_duration** (**Required**, :ref:`config-time`): The amount of time it takes the cover
|
|
to open up from the fully-closed state.
|
|
- **open_endstop** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when the open position is reached.
|
|
- **open_sensor** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when the cover is moving in the open direction.
|
|
- **open_obstacle_sensor** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when an obstacle that blocks the
|
|
open direction is detected.
|
|
|
|
Close options:
|
|
|
|
- **close_action** (**Required**, :ref:`Action <config-action>`): The action that should
|
|
be performed when the remote requests the cover to be closed.
|
|
- **close_duration** (**Required**, :ref:`config-time`): The amount of time it takes the cover
|
|
to close from the fully-open state.
|
|
- **close_endstop** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when the closed position is reached.
|
|
- **close_sensor** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when the cover is moving in the close direction.
|
|
- **close_obstacle_sensor** (**Optional**, :ref:`config-id`): The ID of the
|
|
:ref:`Binary Sensor <config-binary_sensor>` that turns on when an obstacle that blocks the
|
|
close direction is detected.
|
|
|
|
Additional options:
|
|
|
|
- **has_built_in_endstop** (*Optional*, boolean): Indicates that the cover has built in end stop
|
|
detectors. In this configuration the ``stop_action`` is not performed when the open or close
|
|
time is completed and if the cover is commanded to open or close the corresponding actions
|
|
will be performed without checking current state. Defaults to ``false``.
|
|
- **infer_endstop_from_movement** (*Optional*, boolean): Whether to infer endstop state from the movement sensor.
|
|
Requires movement sensors to be set, no endstop sensors and to have builtin endstops. Defaults to ``false``.
|
|
- **assumed_state** (*Optional*, boolean): Whether the true state of the cover is not known.
|
|
This will make the Home Assistant frontend show buttons for both OPEN and CLOSE actions, instead
|
|
of hiding or disabling one of them. Defaults to ``true`` if no sensor is available to known
|
|
the actual state of the cover.
|
|
- **max_duration** (*Optional*, :ref:`config-time`): The maximum duration the cover should be opening
|
|
or closing. Useful for protecting from dysfunctional endstops.
|
|
Requires internal, builtin or inferred endstops.
|
|
- **direction_change_wait_time** (*Optional*, :ref:`config-time`): Stops cover and forces a wait time between changes in direction,
|
|
and takes it into account when computing cover position (useful to protect motors).
|
|
When this option is set (even at 0s) if an open/close action is invoked while the cover is moving in the opposite direction,
|
|
then and intermediate stop action will be invoked to generate the delay.
|
|
- **acceleration_wait_time** (*Optional*, :ref:`config-time`): Considers a wait time needed by the cover to actually
|
|
start moving after command is issued and takes it into account when computing cover position
|
|
(useful for heavy covers with large inertia).
|
|
Intended to not accumulate error when doing multiple partial open/close actions).
|
|
The open/close duration includes one instance of this delay, as it is the total amount of time from
|
|
issuing a command to reaching endstop.
|
|
Defaults to ``0s``.
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval
|
|
to publish updated position information to the UI while the cover is moving.
|
|
Defaults to ``1s``.
|
|
- **obstacle_rollback** (*Optional*, percentage): The percentage of rollback the cover will perform in case of
|
|
obstacle detection while moving. Defaults to ``10%``.
|
|
- All other options from :ref:`Cover <config-cover>`.
|
|
|
|
Example Configurations
|
|
----------------------
|
|
|
|
.. _migrating_current_based:
|
|
|
|
Migrating Current-Based Cover
|
|
*****************************
|
|
|
|
Most options can be left untouched, but some modifications are needed:
|
|
|
|
|
|
1. All current sensing related options must be moved to auxiliary :doc:`/components/binary_sensor/analog_threshold`,
|
|
to convert current readings to binary sensors, using the corresponding thresholds and delays.
|
|
|
|
If there where any open/close obstacle current threshold defined, a separate binary sensor with that threshold should be defined.
|
|
The option ``start_sensing_delay`` should be directly replaced by a ``delayed_off`` filter in the movement sensors, or alternatively
|
|
hysteresis options could be used to reduce the noise.
|
|
2. To have the very same behavior implicit in current based cover, you must always set ``has_built_in_endstop`` and ``infer_endstop_from_movement``
|
|
to True.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example original sensor configuration
|
|
cover:
|
|
- platform: current_based
|
|
name: "Current Based Cover"
|
|
|
|
open_sensor: open_current_sensor
|
|
open_moving_current_threshold: 0.5
|
|
open_obstacle_current_threshold: 0.8
|
|
start_sensing_delay: 0.8s
|
|
# ...rest of options
|
|
|
|
# Example converted sensor configuration
|
|
binary_sensor:
|
|
- platform: analog_threshold
|
|
id: open_binary_sensor
|
|
sensor_id: open_current_sensor
|
|
threshold: 0.5
|
|
filters:
|
|
- delayed_off: 0.8s
|
|
- platform: analog_threshold
|
|
id: open_obstacle_binary_sensor
|
|
sensor_id: open_current_sensor
|
|
threshold: 0.8
|
|
# ... repeat for close sensors
|
|
|
|
cover:
|
|
- platform: feedback
|
|
name: "Feedback Based Cover"
|
|
has_built_in_endstop: true
|
|
infer_endstop_from_movement: true
|
|
|
|
open_sensor: open_binary_sensor
|
|
open_obstacle_sensor: open_obstacle_binary_sensor
|
|
#... rest of options
|
|
|
|
3. Malfunction detection is not directly supported by Feedback Cover, as the malfunction was very narrowly defined to a specific use case
|
|
(while in other hardware configurations, the same situation is perfectly valid).
|
|
|
|
The malfunction alerted specifically when there was current in the opposite direction of the requested operation (possibly due to a relay welded).
|
|
This detection can still be achieved by putting the logic directly in the switch, (or whatever needed according to your specific use case).
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example original malfunction configuration
|
|
cover:
|
|
- platform: current_based
|
|
close_sensor: close_current
|
|
close_action:
|
|
- switch.turn_on: open_relay
|
|
open_sensor: open_current
|
|
open_action:
|
|
- switch.turn_on: open_relay
|
|
|
|
malfunction_detection: true
|
|
malfunction_action:
|
|
- logger.log: "Malfunction detected. Relay welded."
|
|
#... rest of options
|
|
|
|
# Example converted malfunction configuration
|
|
switch:
|
|
- platform: gpio
|
|
id: open_relay
|
|
#... rest of options
|
|
on_turn_off:
|
|
- delay: 200ms #allow for switching time and any discharge
|
|
- if:
|
|
condition:
|
|
binary_sensor.is_on: open_binary_sensor
|
|
# alternative can check directly
|
|
# on sensor.in_range open_current
|
|
then:
|
|
- logger.log: "Malfunction detected. Relay welded."
|
|
|
|
|
|
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`index`
|
|
- :ref:`automation`
|
|
- :apiref:`feedback/feedback_cover.h`
|
|
- :ghedit:`Edit`
|