# 4.5.2.2. 快速上手

**Download & Build**

* 參考： [**Installing ROBOTIS ROS Package**](http://emanual.robotis.com/docs/en/platform/op3/recovery/#installing-robotis-ros-packages)

**Run**

執行 launch 啟動檔

```
$ roslaunch op3_gui_demo op3_demo.launch
```

**UI 使用介面**

<div align="left"><img src="https://3058168660-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LkXc5k_SFaP9gK2gsU8%2F-LmhCZtCvmcEdX2oL_Ns%2F-LmhEepjb-_ZqZgjn1Gx%2Fop3_gui.png?alt=media&#x26;token=3d806572-c661-49de-8cb8-71214708079e" alt=""></div>

**用法**

* 參考 [**How to execute GUI program**](http://emanual.robotis.com/docs/en/platform/op3/tutorials/#how-to-exectue-gui-program)
