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215 lines
8.4 KiB
Markdown
215 lines
8.4 KiB
Markdown
---
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title: "MQTT Text"
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description: "Instructions on how to interact with a device exposing text capability through MQTT from within Home Assistant."
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ha_category:
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- Text
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ha_release: "2022.12"
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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` Text platform allows you to integrate devices that show text that can be set remotely. Optionally the text state can be monitored too using MQTT.
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## Configuration
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To enable MQTT text platform 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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text:
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- command_topic: command-topic
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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_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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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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command_template:
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description: Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to generate the payload to send to `command_topic`.
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required: false
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type: template
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command_topic:
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description: The MQTT topic to publish the text value that is set.
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required: true
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type: string
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device:
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description: "Information about the device this of text capability 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 and published messages. Set to `""` to disable decoding of incoming payload.
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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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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 entity attributes. Implies `force_update` of the current select 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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max:
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description: The maximum size of a text being set or received (maximum is 255).
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required: false
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type: integer
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default: 255
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min:
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description: The minimum size of a text being set or received.
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required: false
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type: integer
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default: 0
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mode:
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description: "The mode off the text entity. Must be either `text` or `password`."
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required: false
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type: string
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default: text
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name:
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description: The name of the text entity.
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required: false
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type: string
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default: "MQTT Text"
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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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pattern:
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description: A valid regular expression the text being set or received must match with.
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required: false
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type: string
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qos:
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description: The maximum QoS level of the state topic. Default is 0 and will also be used to publishing messages.
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required: false
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type: integer
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default: 0
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retain:
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description: If the published message should have the retain flag on or not.
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required: false
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type: boolean
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default: false
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state_topic:
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description: "The MQTT topic subscribed to receive text state updates. Text state updates should match the `pattern` (if set) and meet the size constraints `min` and `max`. Can be used with `value_template` to render the incoming payload to a text update."
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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 Select. If two Selects 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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value_template:
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description: "Defines a [template](/docs/configuration/templating/#using-templates-with-the-mqtt-integration) to extract the text state value from the payload received on `state_topic`."
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required: false
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type: template
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{% endconfiguration %}
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<div class='note warning'>
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Make sure that your topic matches exactly. `some-topic/` and `some-topic` are different topics.
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</div>
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## Examples
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This is an example of a manual configured MQTT `text` item.
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{% raw %}
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```yaml
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# Example configuration.yaml entry
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mqtt:
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text:
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- name: "Remote LCD screen"
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icon: mdi:ab-testing
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mode: "text"
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command_topic: "txt/cmd"
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state_topic: "txt/state"
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min: 2
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max: 20
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```
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{% endraw %}
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