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 esphomelib.
The sensor will subscribe to messages on the given MQTT topic and parse each message into
a floating point number.

Please note this integration 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 esphomelib ecosystem.

.. code:: yaml

    # Example configuration entry
    sensor:
      - platform: mqtt_subscribe
        name: "Data from topic"
        id: mysensor
        topic: the/topic

Configuration variables:
------------------------

- **name** (**Required**, string): The name of the sensor.
- **topic** (**Required**, string): The MQTT topic to listen for numeric messages.
- **qos** (*Optional*, int): The MQTT QoS to subscribe with. Defaults to ``0``.
- **id** (*Optional*, :ref:`config-id`): Manually specify the ID used for code generation.
- All other options from :ref:`Sensor <config-sensor>` and :ref:`MQTT Component <config-mqtt-component>`.

See Also
--------

- :ref:`sensor-filters`
- :doc:`API Reference </api/sensor/mqtt_subscribe>`
- `Edit this page on GitHub <https://github.com/OttoWinter/esphomedocs/blob/current/esphomeyaml/components/sensor/mqtt_subscribe.rst>`__

.. disqus::