Turtlebot3 not getting connected to the ubuntu terminal

[kchanakya91]

ISSUE TEMPLATE ver. 0.4.0

1. Which TurtleBot3 platform do you use?

• [ ] [ ] Burger

  • [ ] Waffle
  • [ ] Waffle Pi

2. Which ROS is working with TurtleBot3?

   • [ ] ROS 1 Kinetic Kame
   • [

• [ ] ] ROS 1 Melodic Morenia

  • [ ] ROS 1 Noetic Ninjemys
  • [ ] ROS 2 Dashing Diademata
  • [ ] ROS 2 Eloquent Elusor
  • [ ] ROS 2 Foxy Fitzroy
  • [ ] etc (Please specify your ROS Version here)

3. Which SBC(Single Board Computer) is working on TurtleBot3?

   • [ ] Intel Joule 570x
   • [ ] Raspberry Pi 3B+

• [ ] [ ] Raspberry Pi 4

  • [ ] etc (Please specify your SBC here)

4. Which OS you installed on SBC?

• [ ] [ ] Raspbian distributed by ROBOTIS

  • [ ] Ubuntu MATE (16.04/18.04/20.04)

• [ ] Ubuntu preinstalled server (18.04/20.04)

  • [ ] etc (Please specify your OS here)

5. Which OS you installed on Remote PC?

   • [ ] Ubuntu 16.04 LTS (Xenial Xerus)
   • [

• [ ] ] Ubuntu 18.04 LTS (Bionic Beaver)

  • [ ] Ubuntu 20.04 LTS (Focal Fossa)
  • [ ] Windows 10
  • [ ] MAC OS X (Specify version)
  • [ ] etc (Please specify your OS here)

6. Specify the software and firmware version(Can be found from Bringup messages)

   • Software version: [x.x.x]
   • Firmware version: [1.14.13]

7. Specify the commands or instructions to reproduce the issue.

8. Copy and Paste the error messages on terminal.

The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. Last login: Sun May 15 00:44:22 2022 from 10.200.144.242 pi@raspberrypi:~ $ roslaunch turtlebot3_bringup turtlebot3_robot.launch ... logging to /home/pi/.ros/log/27192726-d3a6-11ec-a485-dca6320a1aab/roslaunch-raspberrypi-29338.log Checking log directory for disk usage. This may take awhile. Press Ctrl-C to interrupt Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://10.200.12.58:43889/

SUMMARY

PARAMETERS

• /rosdistro: melodic
• /rosversion: 1.14.3
• /turtlebot3_core/baud: 115200
• /turtlebot3_core/port: /dev/ttyACM0
• /turtlebot3_core/tf_prefix:
• /turtlebot3_lds/frame_id: base_scan

NODES / turtlebot3_core (rosserial_python/serial_node.py) turtlebot3_diagnostics (turtlebot3_bringup/turtlebot3_diagnostics) turtlebot3_lds (ld08_driver/ld08_driver)

RLException: ERROR: unable to contact ROS master at [http://master:11311] The traceback for the exception was written to the log file

9. Please describe the issue in detail.

We are unable to connect to the turtlebot3 using my pc.

[ROBOTIS-Will]

Hi @kchanakya91

Have you searched similar keywords like #608? You may not have completed the network environment setup.