Can't publish message from Simulink to ROS
조회 수: 5(최근 30일)
I am having trouble sending a message from Simulink to a ROS. The ROS master is running on a separate laptop which runs ROS kinetic on Ubuntu 16.04. When I echo the ROS topic on this laptop the message appears empty. The simulink model and empty message is attached below. Any help is much appreciated.
Abhijeet Gadkari 2021년 7월 6일
편집: Abhijeet Gadkari 2021년 7월 6일
sensor_msgs/Joy is a ROS message that contains variable sized sub-messages.
There is a documented example for working with ROS messages of variable sizes from Simulink.
As shown in the Modify maximum Size of Variable-length Array section of that example, you need to set the correct array-size of the Axes and Buttons fields for sensors_msgs/Joy.
In above snapshot, I've updated the Simulink model with 'Probe Width' blocks and assigned the width to CurrentLength field. In PuTTy window, echo of /joy topic shows message published from MATLAB.