mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-05 09:20:08 +01:00
83 lines
2.8 KiB
ReStructuredText
83 lines
2.8 KiB
ReStructuredText
Exposure Notification Listener
|
|
==============================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up exposure notification listeners for ESPHome.
|
|
:image: exposure_notifications.png
|
|
|
|
The ``exposure_notifications`` component uses the :doc:`/components/esp32_ble_tracker` to discover
|
|
nearby COVID-19 exposure notification bluetooth messages sent by phones running the
|
|
`Google/Apple Exposure Notification service <https://www.google.com/covid19/exposurenotifications/>`__.
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
esp32_ble_tracker:
|
|
|
|
exposure_notifications:
|
|
on_exposure_notification:
|
|
then:
|
|
- lambda: |
|
|
ESP_LOGD("main", "Got notification:");
|
|
ESP_LOGD("main", " RPI: %s", format_hex_pretty(x.rolling_proximity_identifier).c_str());
|
|
ESP_LOGD("main", " RSSI: %d", x.rssi);
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **on_exposure_notification** (*Optional*, :ref:`Automation <automation>`): An automation
|
|
to run when an exposure notification bluetooth message is received.
|
|
|
|
A variable ``x`` of type :apistruct:`exposure_notifications::ExposureNotification` is passed to the automation.
|
|
|
|
An exposure notification payload contains:
|
|
|
|
- Rolling proximity identifier (RPI): A 16-byte long value used to identify a given device in a 10-minute window.
|
|
- Associated encrypted metadata (AEM): Additional encrypted metadata, like transmit power.
|
|
|
|
Because the GAEN framework is designed to prevent tracking an individual, this data can essentially
|
|
only be used to check whether a device with enabled exposure notifications is nearby (and to limited degree
|
|
also count them).
|
|
|
|
Indicator of device with exposure notifications
|
|
-----------------------------------------------
|
|
|
|
The following configuration can be used as an indicator whether an exposure-notifications
|
|
enabled device is nearby. As long as an exposure notification has been received in the last
|
|
minute, the indicator will be on.
|
|
|
|
.. code-block:: yaml
|
|
|
|
esp32_ble_tracker:
|
|
|
|
switch:
|
|
- platform: gpio
|
|
pin: GPIO22
|
|
id: led
|
|
|
|
script:
|
|
- id: start_led
|
|
then:
|
|
- switch.turn_on: led
|
|
- delay: 1min
|
|
- switch.turn_off: led
|
|
|
|
exposure_notifications:
|
|
on_exposure_notification:
|
|
then:
|
|
- lambda: |
|
|
ESP_LOGD("main", "Got notification:");
|
|
ESP_LOGD("main", " RPI: %s", format_hex_pretty(x.rolling_proximity_identifier).c_str());
|
|
ESP_LOGD("main", " RSSI: %d", x.rssi);
|
|
|
|
# Stop existing timer so that turn_off doesn't get called
|
|
- script.stop: start_led
|
|
- script.execute: start_led
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :doc:`esp32_ble_tracker`
|
|
- :apiref:`exposure_notifications/exposure_notifications.h`
|
|
- :ghedit:`Edit`
|