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bringup

Bringup​

Bringup TurtleBot3​

  1. Open a new terminal on the remote PC with Ctrl + Alt + T and connect to the Raspberry Pi via SSH using its IP address.
    Enter your password of Ubuntu OS in Raspberry pi .
    [Remote PC]
$ ssh ubuntu@{IP_ADDRESS_OF_RASPBERRY_PI}
  1. Bring up basic packages to start essential TurtleBot3 applications. You will need to specify your specific TurtleBot3 model.
    [TurtleBot3 SBC]
$ export TURTLEBOT3_MODEL=burger
$ ros2 launch turtlebot3_bringup robot.launch.py
  1. When the TURTLEBOT3_MODEL is set to burger, the terminal output will look like the output below:
    [TurtleBot3 SBC]
$ export TURTLEBOT3_MODEL=burger
$ ros2 launch turtlebot3_bringup robot.launch.py
[INFO] [launch]: All log files can be found below /home/ubuntu/.ros/log/2019-08-19-01-24-19-009803-ubuntu-15310
[INFO] [launch]: Default logging verbosity is set to INFO
urdf_file_name : turtlebot3_burger.urdf
[INFO] [robot_state_publisher-1]: process started with pid [15320]
[INFO] [hlds_laser_publisher-2]: process started with pid [15321]
[INFO] [turtlebot3_ros-3]: process started with pid [15322]
[robot_state_publisher-1] Initialize urdf model from file: /home/ubuntu/turtlebot_ws/install/turtlebot3_description/share/turtlebot3_description/urdf/turtlebot3_burger.urdf
[robot_state_publisher-1] Parsing robot urdf xml string.
[robot_state_publisher-1] Link base_link had 5 children
[robot_state_publisher-1] Link caster_back_link had 0 children
[robot_state_publisher-1] Link imu_link had 0 children
[robot_state_publisher-1] Link base_scan had 0 children
[robot_state_publisher-1] Link wheel_left_link had 0 children
[robot_state_publisher-1] Link wheel_right_link had 0 children
[robot_state_publisher-1] got segment base_footprint
[robot_state_publisher-1] got segment base_link
[robot_state_publisher-1] got segment base_scan
[robot_state_publisher-1] got segment caster_back_link
[robot_state_publisher-1] got segment imu_link
[robot_state_publisher-1] got segment wheel_left_link
[robot_state_publisher-1] got segment wheel_right_link
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Init TurtleBot3 Node Main
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Init DynamixelSDKWrapper
[turtlebot3_ros-3] [INFO] [DynamixelSDKWrapper]: Succeeded to open the port(/dev/ttyACM0)!
[turtlebot3_ros-3] [INFO] [DynamixelSDKWrapper]: Succeeded to change the baudrate!
[robot_state_publisher-1] Adding fixed segment from base_footprint to base_link
[robot_state_publisher-1] Adding fixed segment from base_link to caster_back_link
[robot_state_publisher-1] Adding fixed segment from base_link to imu_link
[robot_state_publisher-1] Adding fixed segment from base_link to base_scan
[robot_state_publisher-1] Adding moving segment from base_link to wheel_left_link
[robot_state_publisher-1] Adding moving segment from base_link to wheel_right_link
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Start Calibration of Gyro
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Calibration End
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Add Motors
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Add Wheels
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Add Sensors
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create battery state publisher
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create imu publisher
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create sensor state publisher
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create joint state publisher
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Add Devices
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create motor power server
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create reset server
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Succeeded to create sound server
[turtlebot3_ros-3] [INFO] [turtlebot3_node]: Run!
[turtlebot3_ros-3] [INFO] [diff_drive_controller]: Init Odometry
[turtlebot3_ros-3] [INFO] [diff_drive_controller]: Run!
  1. Topics and services can be listed with the commands below.
  • The Remote PC can subscribe topics published by the Turtlebot3 SBC by connecting both to the same network environment.
    1. Check that the Remote PC and TurtleBot3 SBC have the same ROS_DOMAIN_ID. They must have the same ROS_DOMAIN_ID.
      [Remote PC],[TurtleBot3 SBC]
    export ROS_DOMAIN_ID=30
    1. Check that the Remote PC and TurtleBot3 SBC have the same RMW(ROS Middleware) implementation.
      [Remote PC],[TurtleBot3 SBC]
    export RMW_IMPLEMENTATION=rmw_fastrtps_cpp
    1. Check that your wifi router supports multi cast. If it does, configure your router to permit multi cast.
  1. The List of topics and services may vary depending on your installed ROS package version.
  • Topic list
$ ros2 topic list
/battery_state
/cmd_vel
/imu
/joint_states
/magnetic_field
/odom
/parameter_events
/robot_description
/rosout
/scan
/sensor_state
/tf
/tf_static
  • Service list
$ ros2 service list
/diff_drive_controller/describe_parameters
/diff_drive_controller/get_parameter_types
/diff_drive_controller/get_parameters
/diff_drive_controller/list_parameters
/diff_drive_controller/set_parameters
/diff_drive_controller/set_parameters_atomically
/hlds_laser_publisher/describe_parameters
/hlds_laser_publisher/get_parameter_types
/hlds_laser_publisher/get_parameters
/hlds_laser_publisher/list_parameters
/hlds_laser_publisher/set_parameters
/hlds_laser_publisher/set_parameters_atomically
/launch_ros/describe_parameters
/launch_ros/get_parameter_types
/launch_ros/get_parameters
/launch_ros/list_parameters
/launch_ros/set_parameters
/launch_ros/set_parameters_atomically
/motor_power
/reset
/sound
/turtlebot3_node/describe_parameters
/turtlebot3_node/get_parameter_types
/turtlebot3_node/get_parameters
/turtlebot3_node/list_parameters
/turtlebot3_node/set_parameters
/turtlebot3_node/set_parameters_atomically

Read more about launching RViz

Load TurtleBot3 on Rviz​

  1. Make bring up the TurtleBot3

  2. Open a new terminal and enter the below command to launch RViz.

$ ros2 launch turtlebot3_bringup rviz2.launch.py

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