Using the CORE2-ROS without internet

1

Hello,

So we’ve programmed the CORE2-ROS to our likings, we have also some ROS stuff on a PC to control it via a router. We were able to control the CORE2-ROS from the PC when a connection to the internet was made with a router.

Now we removed the internet connectivity to the router, I am still able to connect to the CORE2-ROS via the router and start the ROS code over there which connects to the ROS master on the PC. But a message from the PC is not delivered to the CORE2-ROS. How can we fix this?

Extra info: the CORE2-ROS runs a node, to which the CORE2 subscribers (emergency_stop topic). But because the master runs on the PC, it won’t receive those messages.

I was able to narrow down the problem: the CORE2-ROS does not read the messages published over topic to which the PC publishes. The problem happened when I removed internet connectivity from the system.

Regards,

Mike

2

Hi Mike,

How did you connect device into one network? Using manual export IP or husarnet?

I need output of rqt_tf_tree and rqt_graph in both situation (with and without internet connection).

After receiving this information I will try to investigate the issue.

Best regards,
Hubert Zwiercan

3

Hi Hubert,

This problem has been solved, the error occured at one of the external nodes connecting to the ROS network.

Regards,

Mike

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