mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-12-26 17:27:47 +01:00
99 lines
4.2 KiB
ReStructuredText
99 lines
4.2 KiB
ReStructuredText
.. _key_collector:
|
|
|
|
Key collector component
|
|
=======================
|
|
|
|
.. seo::
|
|
:description: Key collector component
|
|
|
|
The ``key_collector`` component collects key presses from
|
|
components like :ref:`matrix_keypad` or ``wiegand``. It allows you to process
|
|
key sequences and treat them as one, for example to allow inputting of
|
|
a PIN code or a passkey. The component outputs the result of the keypress
|
|
sequence as a variable usable in automations.
|
|
|
|
|
|
Component
|
|
---------
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
key_collector:
|
|
- id: pincode_reader
|
|
source_id: mykeypad
|
|
min_length: 4
|
|
max_length: 4
|
|
end_keys: "#"
|
|
end_key_required: true
|
|
back_keys: "*"
|
|
clear_keys: "C"
|
|
allowed_keys: "0123456789"
|
|
timeout: 5s
|
|
on_progress:
|
|
- logger.log:
|
|
format: "input progress: '%s', started by '%c'"
|
|
args: [ 'x.c_str()', "(start == 0 ? '~' : start)" ]
|
|
on_result:
|
|
- logger.log:
|
|
format: "input result: '%s', started by '%c', ended by '%c'"
|
|
args: [ 'x.c_str()', "(start == 0 ? '~' : start)", "(end == 0 ? '~' : end)" ]
|
|
on_timeout:
|
|
- logger.log:
|
|
format: "input timeout: '%s', started by '%c'"
|
|
args: [ 'x.c_str()', "(start == 0 ? '~' : start)" ]
|
|
|
|
|
|
|
|
Configuration variables:
|
|
|
|
- **id** (*Optional*, :ref:`config-id`): Set the ID of this entry for use in lambdas.
|
|
- **source_id** (*Optional*, :ref:`config-id`): The ID of the key input device.
|
|
- **min_length** (*Optional*, integer): The minimal length of the desired key sequence. Below
|
|
this, ``on_result`` automation will not trigger even if any of the ``end_keys`` was pressed.
|
|
- **max_length** (*Optional*, integer): The maximum length of the desired key sequence, after
|
|
which the sequence will trigger the ``on_result`` automation witout having to press any of the ``end_keys``
|
|
- **end_keys** (*Optional*, string): Keys used to *enter* the sequence.
|
|
- **end_key_required** (*Optional*, boolean): Only trigger ``on_result`` automation when one of
|
|
the ``end_keys`` was pressed. Defaults to ``false``.
|
|
- **back_keys** (*Optional*, string): Keys used to delete the last pressed key. Like *Backspace* on a keyboard.
|
|
- **clear_keys** (*Optional*, string): Keys used to entirely clear the sequence, all the pressed keys.
|
|
- **allowed_keys** (*Optional*, string): Keys allowed to be used. If not specified, then any otherwise
|
|
unused keys will be allowed.
|
|
- **timeout** (*Optional*, :ref:`config-time`): Timeout after which to cancel building the sequence and delete all the keys.
|
|
|
|
At least one of ``end_keys`` or ``max_length`` have to be specified. The rest are optional.
|
|
If both ``end_keys`` and ``max_length`` are specified, then once ``max_length`` keys are collected, no more will be
|
|
accepted until an end key is pressed.
|
|
|
|
Automations:
|
|
------------
|
|
|
|
- **on_progress** (*Optional*, :ref:`Automation <automation>`): An automation to perform
|
|
when keys are pressed. The current sequence of pressed keys is placed in a ``vector<uint8_t>`` variable ``x``
|
|
and ``start`` holds the start key that activated this sequence or else ``0``.
|
|
Useful if you want to have a display showing the current value or number of key presses,
|
|
or a speaker beeping when keys are being pressed.
|
|
- **on_result** (*Optional*, :ref:`Automation <automation>`): An automation to perform
|
|
when the sequence has been finished (eg. ``max_length`` has been reached or one of
|
|
the ``end_keys`` was pressed). The finalized key sequence is placed in a ``vector<uint8_t>`` variable ``x``,
|
|
``start`` holds the start key that activated this sequence or else ``0``, and
|
|
``end`` holds the end key that terminated this sequence or else ``0``.
|
|
- **on_timeout** (*Optional*, :ref:`Automation <automation>`): An automation to perform
|
|
if the timeout happens. The current sequence of pressed keys is placed in a ``vector<uint8_t>`` variable ``x``
|
|
and ``start`` holds the start key that activated this sequence or else ``0``.
|
|
|
|
Lambda:
|
|
-------
|
|
|
|
- **send_key(uint8_t key)**: Send a key to the collector directly.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`/components/matrix_keypad`
|
|
|
|
.. - :doc:`/components/wiegand`
|
|
|
|
- :ghedit:`Edit`
|