home-assistant.io/source/_integrations/scene.mqtt.markdown

---
title: "MQTT Scene"
description: "Instructions on how to integrate MQTT scenes into Home Assistant."
ha_category:
  - Scene
ha_release: 2020.12
ha_iot_class: Configurable
ha_domain: mqtt
---

The `mqtt` scene platform lets you control your MQTT enabled scenes.

## Configuration

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

```yaml
# Example configuration.yaml entry
mqtt:
  scene:
    - command_topic: zigbee2mqtt/living_room_group/set
```

<a id='new_format'></a>

{% details "Previous configuration format" %}

The configuration format of manual configured MQTT items has changed.
The old format that places configurations under the `scene` platform key
should no longer be used and is deprecated.

The above example shows the new and modern way,
this is the previous/old example:

```yaml
scene:
  - platform: mqtt
    command_topic: zigbee2mqtt/living_room_group/set
```

{% enddetails %}

{% configuration %}
availability:
  description: A list of MQTT topics subscribed to receive availability (online/offline) updates. Must not be used together with `availability_topic`.
  required: false
  type: list
  keys:
    payload_available:
      description: The payload that represents the available state.
      required: false
      type: string
      default: online
    payload_not_available:
      description: The payload that represents the unavailable state.
      required: false
      type: string
      default: offline
    topic:
      description: An MQTT topic subscribed to receive availability (online/offline) updates.
      required: true
      type: string
    value_template:
      description: "Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract device's availability from the `topic`. To determine the devices's availability result of this template will be compared to `payload_available` and `payload_not_available`."
      required: false
      type: template
availability_mode:
  description: 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.
  required: false
  type: string
  default: latest
availability_template:
  description: "Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract device's availability from the `availability_topic`. To determine the devices's availability result of this template will be compared to `payload_available` and `payload_not_available`."
  required: false
  type: template
availability_topic:
  description: The MQTT topic subscribed to receive availability (online/offline) updates. Must not be used together with `availability`.
  required: false
  type: string
command_topic:
  description: The MQTT topic to publish `payload_on` to activate the scene.
  required: false
  type: string
enabled_by_default:
  description: Flag which defines if the entity should be enabled when first added.
  required: false
  type: boolean
  default: true
entity_category:
  description: The [category](https://developers.home-assistant.io/docs/core/entity#generic-properties) of the entity.
  required: false
  type: string
  default: None
icon:
  description: Icon for the scene.
  required: false
  type: icon
name:
  description: The name to use when displaying this scene.
  required: false
  type: string
  default: MQTT Scene
object_id:
  description: Used instead of `name` for automatic generation of `entity_id`
  required: false
  type: string
payload_available:
  description: The payload that represents the available state.
  required: false
  type: string
  default: online
payload_not_available:
  description: The payload that represents the unavailable state.
  required: false
  type: string
  default: offline
payload_on:
  description: The payload that will be sent to `command_topic` when activating the MQTT scene.
  required: false
  type: string
  default: "ON"
qos:
  description: The maximum QoS level of the state topic. Default is 0 and will also be used to publishing messages.
  required: false
  type: integer
  default: 0
retain:
  description: If the published message should have the retain flag on or not.
  required: false
  type: boolean
  default: false
unique_id:
  description: An ID that uniquely identifies this scene entity. If two scenes have the same unique ID, Home Assistant will raise an exception.
  required: false
  type: string
{% endconfiguration %}

<div class='note warning'>

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

</div>

## Examples

In this section, you will find some real-life examples of how to use the MQTT Scene.

### Full configuration

The example below shows a full configuration for a scene.

```yaml
# Example configuration.yaml entry
mqtt:
  scene:
    - unique_id: living_room_party_scene
      name: "Living Room Party Scene"
      command_topic: "home/living_room/party_scene/set"
      availability:
        - topic: "home/living_room/party_scene/available"
      payload_on: "ON"
      qos: 0
      retain: true
```

### Use with a JSON Payload

The example below shows a configuration using a JSON payload.

```yaml
# Example configuration.yaml entry
mqtt:
  scene:
    - name: Living Room Blue Scene
      unique_id: living_room_blue_scene
      command_topic: "home/living_room/set"
      payload_on: '{"activate_scene": "Blue Scene"}'
```