# MQTT Publish

## Overview

![The MQTT Publish Node.](https://2628349686-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwnv17cpjDin2deSlOz0z%2Fuploads%2Fgit-blob-e0dc40d731110611bc47c97bfa7a0c46530a7cb6%2Fmqttpublishupdatedimage.png?alt=media)

The **MQTT Publish Node** sends a message to a server specified by the chosen configuration in [**Project Settings**](https://docs.incari.com/incari-studio/2023.1/modules/project-settings/mqtt).

[**Scope**](https://github.com/cgi-studio-gmbh/incari-doc/blob/2023.1/toolbox/communication/overview.md#scopes): **Project**, **Scene**.

## Attributes

![The MQTT Publish Node Attributes.](https://2628349686-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fwnv17cpjDin2deSlOz0z%2Fuploads%2Fgit-blob-a49c271fd1c89d5d0bc7c7d3fad462cb95fab25e%2Fmqttpublishattributes.png?alt=media)

| Attribute       | Type          | Description                                        |
| --------------- | ------------- | -------------------------------------------------- |
| `Configuration` | **Drop-down** | The connection, or signal name, that will be used. |

## Inputs

| Input             | Type       | Description                                                           |
| ----------------- | ---------- | --------------------------------------------------------------------- |
| *Pulse Input* (►) | **Pulse**  | A standard **Input Pulse**, to trigger the execution of the **Node**. |
| `Topic`           | **String** | The key in the **MQTT** key/value pair, in the form *Topic/name*.     |
| `Message`         | **String** | The value in the **MQTT** key/value pair.                             |

## Outputs

| Output             | Type      | Description                                                                                                                            |
| ------------------ | --------- | -------------------------------------------------------------------------------------------------------------------------------------- |
| *Pulse Output* (►) | **Pulse** | A standard **Output Pulse**, to move onto the next **Node** along the **Logic Branch**, once this **Node** has finished its execution. |

## See Also

* [**MQTT Start**](https://docs.incari.com/incari-studio/2023.1/toolbox/communication/mqtt/mqttstart)
* [**MQTT Stop**](https://docs.incari.com/incari-studio/2023.1/toolbox/communication/mqtt/mqttstop)
* [**MQTT Subscribe**](https://docs.incari.com/incari-studio/2023.1/toolbox/communication/mqtt/mqttsubscribe)

## External Links

* [*An in-depth explanation of Topics*](http://www.steves-internet-guide.com/understanding-mqtt-topics/)