[ros-users] [Discourse.ros.org] [General] TurtleBot3 software and firmware update and 'waffle_pi'

Ed ros.discourse at gmail.com
Mon Jan 29 23:47:50 UTC 2018

I'm still getting a checksum mismatch. I upgraded to OpenCR 1.0.15 and also tried 1.0.16. I upgraded with turtlebot3.git and on turtlebot3_msg.git on both my RemotePC and TurtleBot.

* I did a roscore on my RemotePC
* a ssh into the TurtleBot
* did a "roslaunch turtlebot3_bringup turtlebot3_core.launch" on the TurtleBot

This is the execution 
  $ roslaunch turtlebot3_bringup turtlebot3_core.launch
  ... logging to /home/eepp/.ros/log/5a7d18a4-0545-11e8-9b6b-080027c0cb1e/roslaun\
  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
   * /rosdistro: kinetic
   * /rosversion: 1.12.12
   * /turtlebot3_core/baud: 115200
   * /turtlebot3_core/port: /dev/ttyACM0
      turtlebot3_core (rosserial_python/serial_node.py)
  process[turtlebot3_core-1]: started with pid [3447]
  [INFO] [1517266129.977476]: ROS Serial Python Node
  [INFO] [1517266130.051262]: Connecting to /dev/ttyACM0 at 115200 baud
  [ERROR] [1517266132.304481]: Creation of publisher failed: Checksum does not ma\
  tch: 427f77f85da38bc1aa3f65ffb673c94c,d537ed7b8d95065b6c83830430b93911
  [INFO] [1517266132.362502]: Note: publish buffer size is 1024 bytes

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