> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Run the demo application

The prebuilt image includes the sample applications that you can run and use the sample code as a basis to write your own robot and ROS applications. This information guides you to run a demo sample application that publishes system status information.

<Tip>
  **Important**

  * Before running the demo, ensure that the previous steps are successful.
  * This demo application supports the Qualcomm Dragonwing<sup>TM</sup> IQ-9075 Evaluation Kit. For more sample applications, see [QIR SDK sample applications](./qir-sdk-sample-applications).
</Tip>

## Run out-of-the-box qrb\_ros\_system\_monitor sample application

**Steps**

1. Start two terminals, and run the following commands in each terminal to set up QIR SDK and ROS2 environment on the device.
   ```shell theme={null}
   ssh root@[ip-addr]
   (ssh) source /usr/share/qirp-setup.sh
   ```
2. In terminal 1, run the system monitor ROS node.
   ```shell theme={null}
   (ssh) ros2 run qrb_ros_system_monitor qrb_ros_system_monitor
   ```
3. In terminal 2, check the system information with ROS topic.
   ```shell theme={null}
   (ssh) ros2 topic echo /cpu
   ```

<Note>
  **Note**

  For details about the demo application, including its pipeline and how to build it manually, see [Publish system status with qrb\_ros\_system\_monitor](./publish-system-status-with-qrb-ros-system-monitor).
</Note>

## Next step

[Check out more sample applications](./qir-sdk-sample-applications)