MQTT Fan

The mqtt fan platform lets you control your MQTT enabled fans.

Configuration

In an ideal scenario, the MQTT device will have a state_topic to publish state changes. If these messages are published with a RETAIN flag, the MQTT fan will receive an instant state update after subscription and will start with the correct state. Otherwise, the initial state of the fan will be false / off.

When a state_topic is not available, the fan will work in optimistic mode. In this mode, the fan will immediately change state after every command. Otherwise, the fan will wait for state confirmation from the device (message from state_topic).

Optimistic mode can be forced even if a state_topic is available. Try to enable it if you are experiencing incorrect fan operation.

To enable MQTT fans in your installation, add the following to your configuration.yaml file:

# Example configuration.yaml entry
fan:
  - platform: mqtt
    command_topic: "bedroom_fan/on/set"

Configuration Variables

availability list (Optional)

A list of MQTT topics subscribed to receive availability (online/offline) updates. Must not be used together with availability_topic.

payload_available string (Optional, default: online)

The payload that represents the available state.

payload_not_available string (Optional, default: offline)

The payload that represents the unavailable state.

topic string Required

An MQTT topic subscribed to receive availability (online/offline) updates.

availability_mode string (Optional, default: latest)

When availability is configured, this controls the conditions needed to set the entity to available. Valid entries are all, any, and latest. If set to all, payload_available must be received on all configured availability topics before the entity is marked as online. If set to any, payload_available must be received on at least one configured availability topic before the entity is marked as online. If set to latest, the last payload_available or payload_not_available received on any configured availability topic controls the availability.

availability_topic string (Optional)

The MQTT topic subscribed to receive availability (online/offline) updates. Must not be used together with availability.

command_template template (Optional)

Defines a template to generate the payload to send to command_topic.

command_topic string Required

The MQTT topic to publish commands to change the fan state.

device map (Optional)

Information about the device this fan is a part of to tie it into the device registry. Only works through MQTT discovery and when unique_id is set.

connections list | map (Optional)

A list of connections of the device to the outside world as a list of tuples [connection_type, connection_identifier]. For example the MAC address of a network interface: "connections": [["mac", "02:5b:26:a8:dc:12"]].

identifiers string | list (Optional)

A list of IDs that uniquely identify the device. For example a serial number.

manufacturer string (Optional)

The manufacturer of the device.

model string (Optional)

The model of the device.

name string (Optional)

The name of the device.

suggested_area string (Optional)

Suggest an area if the device isn’t in one yet.

sw_version string (Optional)

The firmware version of the device.

via_device string (Optional)

Identifier of a device that routes messages between this device and Home Assistant. Examples of such devices are hubs, or parent devices of a sub-device. This is used to show device topology in Home Assistant.

icon icon (Optional)

Icon for the entity.

json_attributes_template template (Optional)

Defines a template to extract the JSON dictionary from messages received on the json_attributes_topic. Usage example can be found in MQTT sensor documentation.

json_attributes_topic string (Optional)

The MQTT topic subscribed to receive a JSON dictionary payload and then set as sensor attributes. Usage example can be found in MQTT sensor documentation.

name string (Optional, default: MQTT Fan)

The name of the fan.

optimistic boolean (Optional)

Flag that defines if lock works in optimistic mode

Default:

true if no state topic defined, else false.

oscillation_command_template template (Optional)

Defines a template to generate the payload to send to oscillation_command_topic.

oscillation_command_topic string (Optional)

The MQTT topic to publish commands to change the oscillation state.

oscillation_state_topic string (Optional)

The MQTT topic subscribed to receive oscillation state updates.

oscillation_value_template string (Optional)

Defines a template to extract a value from the oscillation.

payload_available string (Optional, default: online)

The payload that represents the available state.

payload_not_available string (Optional, default: offline)

The payload that represents the unavailable state.

payload_off string (Optional, default: OFF)

The payload that represents the stop state.

payload_on string (Optional, default: ON)

The payload that represents the running state.

payload_oscillation_off string (Optional, default: oscillate_off)

The payload that represents the oscillation off state.

payload_oscillation_on string (Optional, default: oscillate_on)

The payload that represents the oscillation on state.

percentage_command_template template (Optional)

Defines a template to generate the payload to send to percentage_command_topic.

percentage_command_topic string (Optional)

The MQTT topic to publish commands to change the fan speed state based on a percentage.

percentage_state_topic string (Optional)

The MQTT topic subscribed to receive fan speed based on percentage.

percentage_value_template string (Optional)

Defines a template to extract a value from fan percentage speed.

preset_mode_command_template template (Optional)

Defines a template to generate the payload to send to preset_mode_command_topic.

preset_mode_command_topic string (Optional)

The MQTT topic to publish commands to change the preset mode.

preset_mode_state_topic string (Optional)

The MQTT topic to publish commands to change the preset mode.

preset_mode_value_template string (Optional)

Defines a template to extract a value from the preset_mode payload.

preset_modes list (Optional, default: [])

List of preset modes this fan is capable of running at. Common examples include auto, smart, whoosh, eco and breeze.

qos integer (Optional, default: 0)

The maximum QoS level of the state topic.

retain boolean (Optional, default: true)

If the published message should have the retain flag on or not.

speed_range_min integer (Optional, default: 1)

The minimum of numeric output range (off not included, so speed_range_min - 1 represents 0%). The number of speeds within the speed_range / 100 will determine the percentage_step.

speed_range_max integer (Optional, default: 100)

The maximum of numeric output range (representing 100%). The number of speeds within the speed_range / 100 will determine the percentage_step.

state_topic string (Optional)

The MQTT topic subscribed to receive state updates.

state_value_template string (Optional)

Defines a template to extract a value from the state.

unique_id string (Optional)

An ID that uniquely identifies this fan. If two fans have the same unique ID, Home Assistant will raise an exception.

Make sure that your topics match exactly. some-topic/ and some-topic are different topics.

Examples

In this section you find some real-life examples of how to use this fan.

Full configuration

The example below shows a full configuration for a MQTT fan using percentage and preset modes. There are 10 speeds within the speed range, so percentage_step = 100 / 10 steps = 10.0 %.

# Example using percentage based speeds with preset modes configuration.yaml
fan:
  - platform: mqtt
    name: "Bedroom Fan"
    state_topic: "bedroom_fan/on/state"
    command_topic: "bedroom_fan/on/set"
    oscillation_state_topic: "bedroom_fan/oscillation/state"
    oscillation_command_topic: "bedroom_fan/oscillation/set"
    percentage_state_topic: "bedroom_fan/speed/percentage_state"
    percentage_command_topic: "bedroom_fan/speed/percentage"
    preset_mode_state_topic: "bedroom_fan/speed/preset_mode_state"
    preset_mode_command_topic: "bedroom_fan/speed/preset_mode"
    preset_modes:
       -  "auto"
       -  "smart"
       -  "whoosh"
       -  "eco"
       -  "breeze"
    qos: 0
    payload_on: "true"
    payload_off: "false"
    payload_oscillation_on: "true"
    payload_oscillation_off: "false"
    speed_range_min: 1
    speed_range_max: 10

This example demonstrates how to use command templates with JSON output.

# Example configuration.yaml
# Example using command templates
fan:
  - platform: mqtt
    name: "Bedroom Fan"
    command_topic: "bedroom_fan/on/set"
    command_template: "{ state: '{{ value }}'}"
    oscillation_command_topic: "bedroom_fan/oscillation/set"
    oscillation_command_template: "{ oscillation: '{{ value }}'}"
    percentage_command_topic: "bedroom_fan/speed/percentage"
    percentage_command_template: "{ percentage: '{{ value }}'}"
    preset_mode_command_topic: "bedroom_fan/speed/preset_mode"
    preset_mode_command_template: "{ preset_mode: '{{ value }}'}"
    preset_modes:
       -  "auto"
       -  "smart"
       -  "whoosh"
       -  "eco"
       -  "breeze"

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