esphome-docs/components/esp32_ble.rst

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BLE Component
=============
.. seo::
:description: Instructions for setting up Bluetooth LE in ESPHome.
:image: bluetooth.svg
The ``esp32_ble`` component in ESPHome sets up the Bluetooth LE stack on the device so that a :doc:`esp32_ble_server`
can run.
.. code-block:: yaml
# Example configuration
esp32_ble:
io_capability: keyboard_only
Configuration variables:
------------------------
- **io_capability** (*Optional*, enum): The IO capability of this ESP32, used for securely connecting to other BLE devices. Defaults to ``none``.
- ``none`` - No IO capability (Connections that require PIN code authentication will fail)
- ``keyboard_only`` - Only a keyboard to enter PIN codes (or a fixed PIN code)
- ``display_only`` - Only a display to show PIN codes
- ``keyboard_display`` - A keyboard and a display
- ``display_yes_no`` - A display to show PIN codes and buttons to confirm or deny the connection
See Also
--------
- :doc:`esp32_ble_server`
- :doc:`esp32_improv`
- :apiref:`esp32_ble/ble.h`
- :ghedit:`Edit`