Right now I am on turtlebot installation part 4 network config part 5.3
On my workstation PC when I type rostopic list I get the error "unable to communicate with master" The value of ROS_MASTER_URI I get the IP of the turtlebot PC is that correct? and what do I need to do to get my workstation to communicate with my turtlebot PC
Originally posted by smkybear15 on ROS Answers with karma: 1 on 2013-03-10
Post score: 0
Hi,
Yes, ROS_MASTER_URI is your turtlebot laptop ip address. You need to export ROS_HOSTNAME as well in both turtle bot laptop and your workstation laptop. i.e.
Append below statements in your .bashrc file -->
export ROS_MASTER_URI=:11311 export ROS_HOSTNAME=
export ROS_MASTER_URI=:11311 export ROS_HOSTNAME=
Now try pinging one from another.
Run roscore in one and do rostopic list then.
rostopic /echo diagnostics in another one.
It should work. Hope this helps !!
Originally posted by Devasena Inupakutika with karma: 320 on 2013-03-10
This answer was ACCEPTED on the original site
Post score: 1