# Device Controller

> For the complete documentation index, see [llms.txt](https://help.1nce.com/llms.txt).

The Device Controller supports sending messages to the device via the 1NCE OS managed services. For that we offer three protocols in Device Integrator.

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![Device Controller as part of the IoT Integrator](/img/1nce-os/1nce-os-device-controller/d496e66-IoT_Integrator.png)
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