esphome-docs/components/sensor/wifi_signal.rst
2019-05-12 22:44:59 +02:00

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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.png
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 decibels. 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
Configuration variables:
------------------------
- **name** (**Required**, string): The name of the WiFi signal sensor.
- **update_interval** (*Optional*, :ref:`config-time`): The interval
to check the sensor. Defaults to ``60s``.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
- 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`
- :apiref:`wifi_signal/wifi_signal_sensor.h`
- :ghedit:`Edit`