# 22.2.3.4. 如何修改 ROS 程式庫的程式碼

您可以在以下路徑中修改 ROS 程式庫。

* [**Your/Arduino/Board/Package/Directory/OpenCR/hardware/OpenCR/Version/libraries/turtlebot3**](https://github.com/ROBOTIS-GIT/OpenCR/tree/master/arduino/opencr_arduino/opencr/libraries/turtlebot3)
* [**Your/Arduino/Board/Package/Directory/OpenCR/hardware/OpenCR/Version/libraries/turtlebot3\_ros\_lib**](https://github.com/ROBOTIS-GIT/OpenCR/tree/master/arduino/opencr_arduino/opencr/libraries/turtlebot3_ros_lib)&#x20;

如果要在 sketch 資料夾中修改它，請將上述兩個資料夾移動到 “sketchbook/libraries” 資料夾下。
