# On MQTT Start

## Overview

![The On MQTT Start Node.](https://1582035224-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MIspkFTPkuGkv4UgQGs-3848250649%2Fuploads%2Fgit-blob-4f1988d7d7efcd638edbe70346443dc7e1b9bc93%2Fonmqttstart.png?alt=media)

**On MQTT Start** is an **Event Listener Node** that gives the user a way to perform an action once a **MQTT** connection is established.

## Attributes

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

## 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

* [**On MQTT Stop**](https://docs.incari.com/incari-studio/2021.3/toolbox/communication/mqtt/events/onmqttstop)
* [**On MQTT Topic**](https://docs.incari.com/incari-studio/2021.3/toolbox/communication/mqtt/events/onmqtttopic)