Connecting simulink/matlab and Ros only work one way, but can't receive messages

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Mariano De Luca 2023-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/2059739-connecting-simulink-matlab-and-ros-only-work-one-way-but-can-t-receive-messages

评论： Mariano De Luca 2023-12-19

Hello guys, I'm trying to connect a Duckiebot with ROS to MATLAB Simulink (unfortunately, I'm compelled to use them), and something strange is happening. I can ping both devices, and I can also send commands from MATLAB to the robot. The problem is that MATLAB/Simulink is not able to receive messages from the robot. I've tried various guides ( like this https://it.mathworks.com/matlabcentral/answers/119559-why-is-the-ros-subscriber-callback-in-matlab-not-triggered-when-messages-are-published-from-an-exter ) on the internet, but it's not working. Do you know how to resolve this issue?

the strange thing is that sometimes (like 1 in 100 tries i can actually read the data, but if i try again i cann't recive anything., and we also tried with the same robot but connected to a macbook with matlab and it works perfectly, so the problem is windows but i really idk how to do it.

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Answer 1

Sarthak 2023-12-19

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https://ww2.mathworks.cn/matlabcentral/answers/2059739-connecting-simulink-matlab-and-ros-only-work-one-way-but-can-t-receive-messages#answer_1373917

Hi Mariano,

This issue might be occuring because of Windows firewall configurations. You should disable any firewall software you are using or try to add a generic incoming rule.

This should resolve the issue.