git_ws/rbx1/rbx1_dynamixels/launch/dynamixels.launch

<launch>
    <param name="/use_sim_time" value="false" />

    <!-- Load the URDF/Xacro model of our robot -->
    <param name="robot_description" command="$(find xacro)/xacro.py '$(find rbx1_description)/urdf/turtlebot_with_head.xacro'" />

    <!-- Publish the robot state -->
    <node name="robot_state_publisher" pkg="robot_state_publisher" type="state_publisher">
    	<param name="publish_frequency" value="20.0"/>
    </node>

   <!-- Start the Dynamixel low-level driver manager with parameters -->
   <node name="dynamixel_manager" pkg="dynamixel_controllers"
      type="controller_manager.py" required="true" output="screen">
      <rosparam>
         namespace: turtlebot_dynamixel_manager
         serial_ports:
            dynamixel_ax12:
               port_name: /dev/ttyUSB0
               baud_rate: 1000000
               min_motor_id:  1
               max_motor_id: 2
               update_rate: 20
      </rosparam>
   </node>
   
    <!-- Load the joint controller configuration from a YAML file -->
    <rosparam file="$(find rbx1_dynamixels)/config/dynamixel_params.yaml" command="load"/>

   <!-- Start the head pan and tilt controllers -->
   <node name="dynamixel_controller_spawner_ax12" pkg="dynamixel_controllers"
   type="controller_spawner.py"
        args="--manager=turtlebot_dynamixel_manager
              --port=dynamixel_ax12
              --type=simple
        head_pan_joint
        head_tilt_joint"
        output="screen" />

   <!-- Start the Dynamixel Joint States Publisher -->
   <node name="dynamixel_joint_states_publisher" pkg="rbx1_dynamixels" type="dynamixel_joint_state_publisher.py" output="screen" />

   <!-- Start all Dynamixels in the relaxed state -->
   <node pkg="rbx1_dynamixels" type="relax_all_servos.py" name="relax_all_servos" />
   
   <!-- We need a static transforms for the TurtleBot wheels -->
   <node pkg="tf" type="static_transform_publisher" name="odom_left_wheel_broadcaster" args="0 0.13 0.015 0 0 0 /base_link /base_l_wheel_link 100" />
   <node pkg="tf" type="static_transform_publisher" name="odom_right_wheel_broadcaster" args="0 -0.13 0.015 0 0 0 /base_link /base_r_wheel_link 100" />
   <node pkg="tf" type="static_transform_publisher" name="odom_front_wheel_broadcaster" args="0.13 0 0 0 0 0 /base_link /front_wheel_link 100" />

</launch>