esphome-docs/components/sensor/mqtt_subscribe.rst

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MQTT Subscribe Sensor
=====================
.. seo::
:description: Instructions for setting up MQTT subscribe sensors
:image: mqtt.png
:keywords: MQTT
The ``mqtt_subscribe`` sensor platform allows you to get external data into ESPHome.
The sensor will subscribe to messages on the given MQTT topic and parse each message into
a floating point number.
Please note this component only works with MQTT topics that have numeric data! Each time
a message that is not a number is published a warning will be shown. Please use the MQTT subscribe
text sensor for importing arbitrary text into the ESPHome ecosystem.
.. code-block:: yaml
# Example configuration entry
sensor:
- platform: mqtt_subscribe
name: "Data from topic"
id: mysensor
topic: the/topic
Configuration variables:
------------------------
- **topic** (**Required**, string): The MQTT topic to listen for numeric messages.
- **qos** (*Optional*, int): The MQTT QoS to subscribe with. Defaults to ``0``.
- All other options from :ref:`Sensor <config-sensor>`.
See Also
--------
- :ref:`sensor-filters`
- :apiref:`mqtt_subscribe/sensor/mqtt_subscribe_sensor.h`
- :ghedit:`Edit`