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Add documentation for MQTT image platform component (#27887)
Co-authored-by: Franck Nijhof <frenck@frenck.nl>
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Jan Bouwhuis
GitHub
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source/_integrations/image.mqtt.markdown
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source/_integrations/image.mqtt.markdown
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---
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title: "MQTT Image"
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description: "Instructions on how to use an MQTT image message as an Image within Home Assistant."
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ha_category:
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- Image
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ha_release: 2023.7.0
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ha_iot_class: Configurable
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ha_domain: mqtt
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---
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The `mqtt` image platform allows you to integrate the content of an image file sent through MQTT into Home Assistant as an image.
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The `image` platform is a simplified version of the `camera` platform that only accepts images.
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Every time a message under the `image_topic` in the configuration is received, the image displayed in Home Assistant will also be updated. Messages received on `image_topic` should contain the full contents of an image file, for example, a JPEG image, without any additional encoding or metadata.
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This can be used with an application or a service capable of sending images through MQTT.
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## Configuration
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<a id='new_format'></a>
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To enable this image in your installation, add the following to your `configuration.yaml` file:
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```yaml
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# Example configuration.yaml entry
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mqtt:
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image:
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- topic: zanzito/shared_locations/my-device
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```
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The sample configuration above can be tested by publishing an image to the topic from the console:
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```shell
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mosquitto_pub -h <mqtt_broker> -t zanzito/shared_locations/my-device -f <image_filename.jpg>
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```
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{% configuration %}
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availability:
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description: A list of MQTT topics subscribed to receive availability (online/offline) updates. Must not be used together with `availability_topic`.
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required: false
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type: list
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keys:
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payload_available:
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description: The payload that represents the available state.
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required: false
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type: string
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default: online
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payload_not_available:
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description: The payload that represents the unavailable state.
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required: false
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type: string
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default: offline
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topic:
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description: An MQTT topic subscribed to receive availability (online/offline) updates.
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required: true
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type: string
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value_template:
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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`."
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required: false
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type: template
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availability_mode:
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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.
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required: false
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type: string
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default: latest
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availability_template:
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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`."
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required: false
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type: template
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availability_topic:
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description: The MQTT topic subscribed to receive availability (online/offline) updates. Must not be used together with `availability`.
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required: false
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type: string
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content_type:
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description: The content type of and image data message received on `image_topic`.
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required: false
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type: string
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default: image/jpeg
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device:
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description: "Information about the device this image is a part of to tie it into the [device registry](https://developers.home-assistant.io/docs/en/device_registry_index.html). Only works through [MQTT discovery](/integrations/mqtt/#mqtt-discovery) and when [`unique_id`](#unique_id) is set. At least one of identifiers or connections must be present to identify the device."
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required: false
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type: map
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keys:
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configuration_url:
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description: 'A link to the webpage that can manage the configuration of this device. Can be either an HTTP or HTTPS link.'
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required: false
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type: string
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connections:
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description: '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"]`.'
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required: false
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type: list
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hw_version:
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description: The hardware version of the device.
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required: false
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type: string
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identifiers:
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description: 'A list of IDs that uniquely identify the device. For example a serial number.'
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required: false
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type: [list, string]
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manufacturer:
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description: The manufacturer of the device.
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required: false
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type: string
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model:
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description: The model of the device.
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required: false
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type: string
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name:
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description: The name of the device.
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required: false
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type: string
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suggested_area:
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description: 'Suggest an area if the device isn’t in one yet.'
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required: false
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type: string
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sw_version:
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description: The firmware version of the device.
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required: false
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type: string
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via_device:
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description: '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.'
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required: false
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type: string
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enabled_by_default:
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description: Flag which defines if the entity should be enabled when first added.
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required: false
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type: boolean
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default: true
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encoding:
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description: The encoding of the payloads received. Set to `""` to disable decoding of incoming payload. Use `image_encoding` to enable `Base64` decoding on `image_topic`.
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required: false
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type: string
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default: "utf-8"
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entity_category:
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description: The [category](https://developers.home-assistant.io/docs/core/entity#generic-properties) of the entity.
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required: false
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type: string
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default: None
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icon:
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description: "[Icon](/docs/configuration/customizing-devices/#icon) for the entity."
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required: false
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type: icon
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image_encoding:
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description: The encoding of the image payloads received. Set to `"b64"` to enable base64 decoding of image payload. If not set, the image payload must be raw binary data.
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required: false
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type: string
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default: None
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image_topic:
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description: The MQTT topic to subscribe to receive the image payload of the image to be downloaded. Ensure the `content_type` type option is set to the corresponding content type.
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required: true
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type: string
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json_attributes_template:
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description: Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract the JSON dictionary from messages received on the `json_attributes_topic`.
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required: false
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type: template
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json_attributes_topic:
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description: The MQTT topic subscribed to receive a JSON dictionary payload and then set as sensor attributes. Implies `force_update` of the current sensor state when a message is received on this topic.
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required: false
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type: string
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name:
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description: The name of the image.
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required: false
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type: string
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object_id:
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description: Used instead of `name` for automatic generation of `entity_id`
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required: false
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type: string
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unique_id:
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description: An ID that uniquely identifies this image. If two images have the same unique ID Home Assistant will raise an exception.
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required: false
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type: string
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{% endconfiguration %}
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@ -203,6 +203,7 @@ The discovery of MQTT devices will enable one to use MQTT devices with only mini
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- [Device Trigger](/integrations/device_trigger.mqtt/)
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- [Fan](/integrations/fan.mqtt/)
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- [Humidifier](/integrations/humidifier.mqtt/)
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- [Image](/integrations/image.mqtt/)
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- [Climate/HVAC](/integrations/climate.mqtt/)
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- [Light](/integrations/light.mqtt/)
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- [Lock](/integrations/lock.mqtt/)
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@ -298,6 +299,7 @@ Configuration variable names in the discovery payload may be abbreviated to cons
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'cod_arm_req': 'code_arm_required',
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'cod_dis_req': 'code_disarm_required',
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'cod_trig_req': 'code_trigger_required',
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'cont_type': 'content_type',
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'curr_temp_t': 'current_temperature_topic',
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'curr_temp_tpl': 'current_temperature_template',
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'dev': 'device',
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@ -338,6 +340,7 @@ Configuration variable names in the discovery payload may be abbreviated to cons
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'hs_val_tpl': 'hs_value_template',
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'ic': 'icon',
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'img_e': 'image_encoding',
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'img_t': 'image_topic',
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'init': 'initial',
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'hum_cmd_t': 'target_humidity_command_topic',
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'hum_cmd_tpl': 'target_humidity_command_template',
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@ -503,6 +506,8 @@ Configuration variable names in the discovery payload may be abbreviated to cons
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't': 'topic',
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'uniq_id': 'unique_id',
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'unit_of_meas': 'unit_of_measurement',
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'url_t': 'url_topic',
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'url_tpl': 'url_template',
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'val_tpl': 'value_template',
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'whit_cmd_t': 'white_command_topic',
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'whit_scl': 'white_scale',
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@ -684,6 +689,7 @@ For most components it is also possible to manual set up MQTT items in `configur
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- [Device Tracker](/integrations/device_tracker.mqtt/)
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- [Fan](/integrations/fan.mqtt/)
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- [Humidifier](/integrations/humidifier.mqtt/)
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- [Image](/integrations/imahe.mqtt/)
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- [Climate/HVACs](/integrations/climate.mqtt/)
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- [Light](/integrations/light.mqtt/)
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- [Lock](/integrations/lock.mqtt/)
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