> For the complete documentation index, see [llms.txt](https://help.atlas-control.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.atlas-control.app/main-overview/toolbar/external-devices.md).

# External Devices

<figure><img src="/files/rx2ZbwPQglCh56uJ96h8" alt=""><figcaption><p>Atlas Window - Showing 2 external devices with ETC EOS being temporarily disabled from outputting OSC</p></figcaption></figure>

#### External Devices

External devices can be enabled / disabled per device in the toolbar.  A red boundary around a device indicates the device is disabled.&#x20;

This function can also be controlled via OSC [(OSC Library)](/glossary/atlas-controls.md)

{% hint style="danger" %}
Atlas requires a [license](/installation-licensing-and-requirements/licensing.md) to output OSC
{% endhint %}