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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
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=<turtle bot="" ip="" address="">:11311 export ROS_HOSTNAME=<turtle bot="" ip="" address="">
export ROS_MASTER_URI=<turtle bot="" ip="" address="">:11311 export ROS_HOSTNAME=<turtle bot="" ip="" address="">
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 !!
Asked: 2013-03-10 10:30:04 -0600
Seen: 339 times
Last updated: Mar 10 '13
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