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3.2 KiB
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86 lines
3.2 KiB
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ESP32 Bluetooth Low Energy Device
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=================================
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.. seo::
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:description: Instructions for setting up BLE binary sensors for the ESP32.
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:image: bluetooth.png
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The ``ble_presence`` binary sensor platform lets you track the presence of a
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Bluetooth Low Energy device.
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.. figure:: images/esp32_ble-ui.png
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:align: center
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:width: 80.0%
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.. code-block:: yaml
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# Example configuration entry
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esp32_ble_tracker:
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binary_sensor:
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# Presence based on MAC address
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- platform: ble_presence
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mac_address: AC:37:43:77:5F:4C
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name: "ESP32 BLE Tracker Google Home Mini"
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# Presence based on BLE Service UUID
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- platform: ble_presence
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service_uuid: '11aa'
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name: "ESP32 BLE Tracker Test Service 16 bit"
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.. note::
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Service UUID can be 16 bit long, as in the example, but it can also be 32 bit long
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like ``1122aaff``, or 128 bit long like ``11223344-5566-7788-99aa-bbccddeeff00``.
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Configuration variables:
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------------------------
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- **name** (**Required**, string): The name of the binary sensor.
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- **mac_address** (*Optional*, MAC Address): The MAC address to track for this
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binary sensor. Either this or ``service_uuid`` has to be present.
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- **service_uuid** (*Optional*, string): 16 bit, 32 bit, or 128 bit BLE Service UUID
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which can be tracked if the device randomizes the MAC address. Either
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this or ``mac_address`` has to be present.
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- **id** (*Optional*, :ref:`config-id`): Manually specify
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the ID used for code generation.
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- All other options from :ref:`Binary Sensor <config-binary_sensor>`.
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.. _esp32_ble_tracker-setting_up_devices:
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Setting Up Devices
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------------------
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To set up binary sensors for specific BLE beacons you first have to know which MAC address
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to track. Most devices show this screen in some setting menu. If you don't know the MAC address,
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however, you can use the ``esp32_ble_tracker`` hub without any binary sensors attached and read through
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the logs to see discovered Bluetooth Low Energy devices.
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.. code-block:: yaml
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# Example configuration entry for finding MAC addresses
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esp32_ble_tracker:
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Using the configuration above, first you should see a ``Starting scan...`` debug message at
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boot-up. Then, when a BLE device is discovered, you should see messages like
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``Found device AC:37:43:77:5F:4C`` together with some information about their
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address type and advertised name. If you don't see these messages, your device is unfortunately
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currently not supported.
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Please note that devices that show a ``RANDOM`` address type in the logs cannot be used for
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MAC address based tracking, since their MAC-address periodically changes. Instead you can create
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a BLE beacon, set a unique 16 bit, 32 bit or 128 bit Service UUID and track your device based on that.
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Make sure you don't pick a `GATT Service UUID <https://www.bluetooth.com/specifications/gatt/services/>`__,
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otherwise generic services might give you incorrect tracking results.
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See Also
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--------
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- :doc:`/components/esp32_ble_tracker`
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- :doc:`/components/binary_sensor/index`
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- :apiref:`ble_presence/ble_presence.h`
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- `ESP32 BLE for Arduino <https://github.com/nkolban/ESP32_BLE_Arduino>`__ by `Neil Kolban <https://github.com/nkolban>`__.
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- :ghedit:`Edit`
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