I cannot connect matlab with ros2 toolbox

when I use the "ros2node" function create a ros node and enter "ros2 topic list" in command line, just one topic "parameter_events" be found , but I find topics normally in my turtlebot3's terminal , and my notebook and turtlebot3 connects to the same internet.

[Jagadeesh Konakalla]

Hi,

For the communication between MATLAB and ROS 2 network (in this case Turtlebot 3) , please make sure that following are set correctly.

1. Please ensure that both uses same Domain ID. You can ceck the Domain ID of Turtlebot 3 terminal and use the same in the MATLAB.
2. I advice that both use the same RMW middlwware. You can check the environemnet variable RMW_IMPLEMENTATION.
3. Sometimes it is observed that different distributions of ROS 2 may not communicate. Which version of MATLAB that you are using ? Which version of ROS 2 distribution that you are using on Turtlebot3 ?

Let me know if this solves your issue.

Thanks,

Jagadeesh K.