No cmd_vel published by either teleop_twist_keyboard nor rqt?

asked 2020-01-12 17:02:41 -0500

Dragonslayer gravatar image

updated 2020-01-12 21:35:31 -0500

ahendrix gravatar image

Hallo, As the title says, Iam just trying to publish cmd_vel from those two nodes. They dont give me Errors, but rostopic echo gives me "WARNING: no messages received and simulated time is active. Is /clock being published?

The receiving node doesnt get anything, as said "rostopic echo" doesnt get anything either, but both two nodes "seem" to run fine (one at a time of course). It worked well until just now, and nothing really big has changed, that had anything to do with publishing either clock nor cmd_vel. Any Ideas what could be going on / blocking, hindering?


  • right topic
  • clock is publishing (right topic again)


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Please add the exact commands you used to start the nodes rqt, teleop_twist_keyboard and rostopic

Humpelstilzchen gravatar image Humpelstilzchen  ( 2020-01-13 07:14:01 -0500 )edit

I got it working now. Still dont know what the issue was, as what I changed was in the base_controller receiving the data. command was simply: rosrun teleop_twist_keyboard cmd_vel:=[MY_TOPIC/cmd_vel]; rqt i simply started and added the topic to publish and published. (use_sim_time=true).

Dragonslayer gravatar image Dragonslayer  ( 2020-01-13 08:10:01 -0500 )edit