> For the complete documentation index, see [llms.txt](https://docs.creativeconners.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.creativeconners.com/docs/spikemark/show-control/udp/udp-messenger.md).

# UDP Messenger

The UDP Messenger, formerly the Stagehand Messenger, allows communication to outside control systems via a simple UDP text string. This feature was introduced to communicate with a proprietary AV controller in a permanent installation.

![](/files/-MiXX9ruwQYE9pglzvIB)

Set your Target Address to the [IP Address](/docs/spikemark/ip-address-and-network-connection.md) and the Port of the device that is listening for UDP messages in the Stagehand Properties Panel

![](/files/-MiXUlryN4v9j_-pP9fz)

In the Cue Workspace, add a “movement” by dragging and dropping the Messenger into a Cue and add your UDP String into the message to send box and Click Update.

In this example we are executing a manual entry to move the Submaster Fader 1 on our Lighting Console to 75%

![](/files/-MiXVpfwxeKcNjuNoVmr)

{% hint style="info" %}
Check the User Guide of your receiving device for the appropriate string commands
{% endhint %}

The UDP Messenger sends out whatever text string is in the movement window when the cue is executed. In the above example, Spikemark is triggering a submaster change, though the text string can be anything you like. The important part is that the device listening for it understands it.


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