mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-05 09:20:08 +01:00
128 lines
5.4 KiB
ReStructuredText
128 lines
5.4 KiB
ReStructuredText
Bluetooth Proxy
|
|
===============
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up the Bluetooth Proxy in ESPHome.
|
|
:image: bluetooth.svg
|
|
|
|
Home Assistant can expand its Bluetooth reach by communicating through the Bluetooth proxy component in ESPHome.
|
|
The individual device integrations in Home Assistant (such as BTHome) will receive the data from the Bluetooth
|
|
Integration in Home Assistant which automatically aggregates all ESPHome Bluetooth proxies with any USB Bluetooth
|
|
Adapters you might have. This exceptional feature offers fault tolerant connection between the Bluetooth devices
|
|
and Home Assistant.
|
|
|
|
Note that while this component is named ``bluetooth_proxy``, only BLE devices (and their Home Assistant integrations)
|
|
are supported.
|
|
|
|
If you're looking to create an ESPHome node that is just a Bluetooth Proxy, see
|
|
our `Bluetooth Proxy installer <https://esphome.github.io/bluetooth-proxies/>`__ website.
|
|
|
|
.. warning:: Active connections
|
|
|
|
The Bluetooth proxy of ESPHome provides Home Assistant with a maximum number of 3 simultaneous active connections.
|
|
Devices which maintain a *continuous active* connection will consume one of these constantly, whilst devices which
|
|
do *periodic disconnections and reconnections* will permit using more than 3 of them (on a statistical basis).
|
|
Passively broadcasted sensor data (that is advertised by certain devices without active connections) is received
|
|
separately from these, and is not limited to a specific number.
|
|
|
|
The :doc:`esp32` component should be configured to use the ``esp-idf`` framework, as the ``arduino`` framework
|
|
uses significantly more memory and performs poorly with the Bluetooth proxy enabled. When switching from
|
|
``arduino`` to ``esp-idf``, make sure to update the device with a serial cable as the partition table is
|
|
different between the two frameworks as :doc:`ota` updates will not change the partition table.
|
|
|
|
The :doc:`web_server` component should be disabled as the device is likely
|
|
to run out of memory and will malfunction when both components are enabled simultaneously.
|
|
|
|
Not all devices are supported and ESPHome does not decode or keep a list. To find out if your device is supported,
|
|
please search for it in the `Home Assistant Integrations <https://www.home-assistant.io/integrations/>`__ list.
|
|
|
|
Configuration:
|
|
--------------
|
|
|
|
.. code-block::
|
|
|
|
bluetooth_proxy:
|
|
|
|
- **active** (*Optional*, boolean): Enables proxying active connections. Defaults to ``false``. Requires Home Assistant 2022.10 or later.
|
|
- **cache_services** (*Optional*, boolean): Enables caching GATT services in NVS flash storage which significantly speeds up active connections. Defaults to ``true`` when using the ESP-IDF framework.
|
|
|
|
The Bluetooth proxy depends on :doc:`esp32_ble_tracker` so make sure to add that to your configuration.
|
|
|
|
.. note::
|
|
|
|
Bluetooth proxy requires Home Assistant 2022.9 or later. ESPHome 2022.12.0 and Home Assistant 2022.12.6 or later is recommended.
|
|
|
|
Improving reception performance
|
|
-------------------------------
|
|
|
|
Use a board with an Ethernet connection to the network, to offload ESP32's radio module from WiFi traffic, this gains performance on Bluetooth side.
|
|
To maximize the chances of catching advertisements of the sensors, you can set ``interval`` equal to ``window`` in :doc:`/components/esp32_ble_tracker` scan parameter settings:
|
|
|
|
.. code-block:: yaml
|
|
|
|
esp32_ble_tracker:
|
|
scan_parameters:
|
|
interval: 1100ms
|
|
window: 1100ms
|
|
.. note::
|
|
|
|
For WiFi-based proxies, changing the ``interval`` or ``window`` from their default values may result in an unstable WiFi connection. Using the default values for ``interval`` and ``window`` will usually resolve any instability.
|
|
|
|
Avoid placing the ESP node in racks, close to routers/switches or other network equipment as EMI interference will degrade Bluetooth signal reception. For best results put as far away as possible, at least 3 meters distance from any other such equipment. Place your ESPHome devices close to the Bluetooth devices that you want to interact with for the best experience.
|
|
|
|
Complete sample recommended configuration for an ethernet-connected Bluetooth proxy
|
|
-----------------------------------------------------------------------------------
|
|
|
|
Below is a complete sample recommended configuration for an ethernet-connected Bluetooth proxy. This configuration is not for a Wi-Fi based proxy. If you experience issues with your proxy, try reducing your configuration to be as similar to this as possible.
|
|
|
|
This configuration is for an Olimex ESP32-PoE-ISO board with an Ethernet connection to the network. If you use a different board, you must change the ``board`` substitution to match your board.
|
|
|
|
.. code-block:: yaml
|
|
|
|
substitutions:
|
|
name: my-bluetooth-proxy
|
|
board: esp32-poe-iso
|
|
|
|
esphome:
|
|
name: ${name}
|
|
name_add_mac_suffix: true
|
|
|
|
esp32:
|
|
board: ${board}
|
|
framework:
|
|
type: esp-idf
|
|
|
|
ethernet:
|
|
type: LAN8720
|
|
mdc_pin: GPIO23
|
|
mdio_pin: GPIO18
|
|
clk_mode: GPIO17_OUT
|
|
phy_addr: 0
|
|
power_pin: GPIO12
|
|
|
|
# Enable logging
|
|
logger:
|
|
|
|
# Enable Home Assistant API
|
|
api:
|
|
|
|
ota:
|
|
|
|
esp32_ble_tracker:
|
|
scan_parameters:
|
|
interval: 1100ms
|
|
window: 1100ms
|
|
active: true
|
|
|
|
bluetooth_proxy:
|
|
active: true
|
|
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`esp32_ble_tracker`
|
|
- :apiref:`bluetooth_proxy/bluetooth_proxy.h`
|
|
- BTHome `<https://bthome.io/>`__
|
|
- :ghedit:`Edit`
|