Fail to create ROS Publisher and ROS subscriber
2 次查看(过去 30 天)
显示 更早的评论
Hi all,
I am creating subscriber and publishers for the turtle bot robot. For most topics, after using rosinit, I can create properly
publishers and subscribers. However, I fail to create a publisher for the /sound topic.
For instance, for topic cmd_vel I get:
r1=rospublisher('/cmd_vel')
r1 = Publisher with properties:
TopicName: '/cmd_vel'
IsLatching: 1
NumSubscribers: 0
MessageType: 'geometry_msgs/Twist'
It works perfect, but for topic sound I get:
r1=rospublisher('/sound')
Failed to create a publisher with topic name /sound and type turtlebot3_msgs/Sound.
Can anyone give me any hint about why this behaviour?
Thank you very much in advance,
Regards,
Ignacio
0 个评论
采纳的回答
Cam Salzberger
2019-6-17
Hello Ignacio,
The message type "geometry_msgs/Twist" is one of the standard, built-in ROS message types. However, the message type "turtlebot3_msgs/Sound" is a custom message type specific to the TurtleBot3. You'll need to make that message type available to MATLAB by building the "turtlebot3_msgs" package with the MATLAB Support Package for ROS Custom Messages.
-Cam
0 个评论
更多回答(0 个)
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!