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getting_started:tutorials:systemros1

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getting_started:tutorials:systemros1 [2023/02/09 10:35] – [Using ROS2] ursgrafgetting_started:tutorials:systemros1 [2023/02/09 11:00] – [Subscribing] ursgraf
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 $ rostopic list $ rostopic list
 </code> </code>
-will list the two topics which are published be our node, ///test/val//, ///test/vector//, and ///test/safetyLevel//.+will list the three topics which are published be our node, ///test/val//, ///test/vector//, and ///test/safetyLevel//.
 Open another shell to show the messages sent by EEROS, e.g. Open another shell to show the messages sent by EEROS, e.g.
 <code> <code>
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 With  With 
 <code> <code>
-$ rosnode list+$ ros2 node list
 </code> </code>
 you will see the new node.  you will see the new node. 
 <code> <code>
-$ rostopic list+$ ros2 topic list
 </code> </code>
-will list the two topics which are published be our node, ///test/val//, ///test/vector//, and ///test/safetyLevel//.+will list the three topics which are published be our node, ///test/val//, ///test/vector//, and ///test/safetyLevel//.
 Open another shell to show the messages sent by EEROS, e.g. Open another shell to show the messages sent by EEROS, e.g.
 <code> <code>
-$ rostopic echo /test/vector+$ ros2 topic echo /test/vector
 </code> </code>
 With  With 
 <code> <code>
-$ rostopic hz /test/val +$ ros2 topic hz /test/val
-</code> +
-you can easily check how often data is sent from out ROS node. Try to plot the data with +
-<code> +
-$ rqt_plot /test/val /test1/vector/data[0] /test/vector/data[1] /test/safetyLevel+
 </code> </code>
 +you can easily check how often data is sent from out ROS node. 
  
 ==== Subscribing ==== ==== Subscribing ====
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 and logs its transported message values into the console. Alternatively you could publish a single message from the command line with  and logs its transported message values into the console. Alternatively you could publish a single message from the command line with 
 <code> <code>
-$ rostopic pub /rosNodeTalker/val std_msgs/Float64 -- -2.3 +$ ros2 topic pub /rosNodeTalker/val std_msgs/msg/Float64 "data: -2.3" 
-$ rostopic pub /rosNodeTalker/vector std_msgs/Float64MultiArray "{layout: {dim: [], data_offset: 0}, data: [2.5, 1.76]}"+$ ros2 topic pub /rosNodeTalker/vector std_msgs/msg/Float64MultiArray "{layout: {dim: [], data_offset: 0}, data: [2.5, 1.76]}"
 </code> </code>
  
getting_started/tutorials/systemros1.txt · Last modified: 2023/02/27 14:00 by ursgraf