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Connect to a remote ROS device and start a ROS core. The ROS core is needed to run ROS nodes to communicate via a ROS network. You can run and stop a ROS core or node and check their status using a rosdevice object.

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Stop serve_forever when rospy.is_shutdown. Ask Question Asked 4 years, 7 months ago. Active 4 years, 6 months ago. ... does not stop when shutting down roscore.

It would be nice to start and stop roscore, even if only for testing. Something like ros.start() or ros.startCore().These would be optional as rosnodejs should continue to run with ros already running.

Pressing R1 while flying will stop the rotors immediately. If the LED beneath the rotors are red (for example, after a crash), press R1 to reset the quadrotor. The L1 button starts the motors of the quadrotor. It also works as a deadman switch so that the robot will land if you release it during flight.

p = subprocess.Popen("exec " + cmd, stdout=subprocess.PIPE, shell=True) This will cause cmd to inherit the shell process, instead of having the shell launch a child process, which does not get killed. p.pid will be the id of your cmd process then. p.kill () should work. I don't know what effect this will have on your pipe though.

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stopCore(device) stops the ROS core on the specified rosdevice, device.If multiple ROS cores are running on the ROS device, the function stops all of them.

My solution is to use a launch file to start all the relevant nodes, with the "terminator" node set to required="true". When the terminator node exits, it will trigger all of the other nodes to close if they are using things like ros::ok() to determine if they should keep running.

The logging node is named /rosout Press Ctrl+C in the first terminal window to stop roscore. Ctrl-C is the typical method used to stop most ROS commands.

roscore respawn problem. Hello, So I'm currently running some long experiments and I'm finding that a few hours in, roscore will come up with the following message and my experiments will stop... .