Learning ROS: Running ROS across multiple machines

2024-10-12 12:08:31

Start the master

ssh hal

roscore

Start the listener

ssh hal

export ROS_MASTER_URI=http://hal:11311

rosrun rospy_tutorials listener.py

Start the talker

ssh marvin

export ROS_MASTER_URI=http://hal:11311

rosrun rospy_tutorials talker.py

rostopic

rostopic list # You get a list of all available topics

rostopic echo /topic_name # check if there is a connection and messages still come.

When something goes wrong

echo $ROS_IP

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