mirror of
https://github.com/esphome/esphome-docs.git
synced 2024-11-15 10:45:41 +01:00
67 lines
2.2 KiB
ReStructuredText
67 lines
2.2 KiB
ReStructuredText
WiFi Signal Sensor
|
|
==================
|
|
|
|
.. seo::
|
|
:description: Instructions for setting up WiFi signal sensors that track the RSSI connection strength value to the network.
|
|
:image: network-wifi.svg
|
|
|
|
The ``wifi_signal`` sensor platform allows you to read the signal
|
|
strength of the currently connected :doc:`WiFi Access Point </components/wifi>`.
|
|
|
|
The sensor value is the `"Received signal strength indication" <https://en.wikipedia.org/wiki/Received_signal_strength_indication>`__
|
|
measured in decibel-milliwatts (dBm). These values are always negative and the closer they are to zero, the better the signal is.
|
|
|
|
.. figure:: images/wifi_signal-ui.png
|
|
:align: center
|
|
:width: 80.0%
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry
|
|
sensor:
|
|
- platform: wifi_signal
|
|
name: "WiFi Signal Sensor"
|
|
update_interval: 60s
|
|
|
|
To additionally display signal strength in percentage use the :ref:`copy-sensor` (it's not possible to add the same sensor twice, because it has a static ``uniqueid`` reported to Home Assistant):
|
|
|
|
.. code-block:: yaml
|
|
|
|
# Example configuration entry with 2 sensors and filter
|
|
sensor:
|
|
- platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
|
|
name: "WiFi Signal dB"
|
|
id: wifi_signal_db
|
|
update_interval: 60s
|
|
entity_category: "diagnostic"
|
|
|
|
- platform: copy # Reports the WiFi signal strength in %
|
|
source_id: wifi_signal_db
|
|
name: "WiFi Signal Percent"
|
|
filters:
|
|
- lambda: return min(max(2 * (x + 100.0), 0.0), 100.0);
|
|
unit_of_measurement: "Signal %"
|
|
entity_category: "diagnostic"
|
|
device_class: ""
|
|
|
|
Configuration variables:
|
|
------------------------
|
|
|
|
- **update_interval** (*Optional*, :ref:`config-time`): The interval
|
|
to check the sensor. Defaults to ``60s``.
|
|
- All other options from :ref:`Sensor <config-sensor>`.
|
|
|
|
.. warning::
|
|
|
|
Signal strength readings are only available when WiFi is in station mode. Readings are not valid
|
|
if the device is acting as an access point without any station mode connection.
|
|
|
|
See Also
|
|
--------
|
|
|
|
- :ref:`sensor-filters`
|
|
- :doc:`/components/wifi`
|
|
- :doc:`/components/text_sensor/wifi_info`
|
|
- :apiref:`wifi_signal/wifi_signal_sensor.h`
|
|
- :ghedit:`Edit`
|