<launch>
  <!-- bringup turtlebot3 -->
  <include file="$(find turtlebot3_bringup)/launch/turtlebot3_robot.launch"/>
  
  <!-- deploy rotate system -->
  <include file="$(find hello_world_robot)/launch/rotate.launch">
    <arg name="use_sim_time" value="false"/>
  </include>
</launch>