81 lines
2.5 KiB
ReStructuredText
81 lines
2.5 KiB
ReStructuredText
Wiegand keypad and tag reader
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=============================
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.. seo::
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:description: Wiegand-standard key input and card/tag reader panel
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:image: wiegand.jpg
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The ``wiegand`` component allows you to integrate Wiegand-standard key
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input and card or tag reader panels in Home Assistant.
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.. figure:: ../images/wiegand.jpg
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:align: center
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S20-ID keypad and tag reader
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.. note::
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Some keypads are preconfigured by the factory to act as Wiegand input
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devices. In order to work with this component, they may need to
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be reconfigured to act as *Wiegand 26 output* or *Wiegand 34 output*
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devices.
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Component
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---------
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.. code-block:: yaml
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# Example configuration entry
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wiegand:
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- id: mykeypad
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d0: GPIO5
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d1: GPIO4
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on_key:
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- lambda: ESP_LOGI("KEY", "received key %d", x);
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on_tag:
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- lambda: ESP_LOGI("TAG", "received tag %s", x.c_str());
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on_raw:
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- lambda: ESP_LOGI("RAW", "received raw %d bits, value %llx", bits, value);
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Configuration variables:
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- **id** (*Optional*, :ref:`config-id`): Set the ID of this device for use in lambdas.
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- **d0** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin where the ``D0`` output
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of the Wiegand's interface connects.
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- **d1** (**Required**, :ref:`Pin Schema <config-pin_schema>`): The pin where the ``D1`` output
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of the Wiegand's interface connects.
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Automations:
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------------
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- **on_key** (*Optional*, :ref:`Automation <automation>`): An automation to perform
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when a key has been pressed on the pad. The key is in a variable called ``x``.
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- **on_tag** (*Optional*, :ref:`Automation <automation>`): An automation to perform
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when a Wiegand-compatible card or a tag has been read by the device. The tag code is
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in a variable called ``x``.
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- **on_raw** (*Optional*, :ref:`Automation <automation>`): An automation to perform
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for any data sent by the device. The value is in a variable called ``value``, the number of
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bits is in a variable called ``bits``. Note that this will include parity bits as well and
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no parity checking is done.
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.. note::
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Automatic handling of multiple keys (e.g. PIN code entry) is possible with the
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the :ref:`Key Collector <key_collector>` component.
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Keys 10 and 11 are ``*`` and ``#``. They might be labelled as ``ENT`` or ``ESC``,
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but check the logs to see which key code you get and use the corresponding character.
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See Also
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--------
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- :doc:`/components/key_collector`
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- :ghedit:`Edit`
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