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Hello,

have you tried to post directly a speed in order to see if the robot accepts the command?

rostopic pub /cmd_vel geometry_msgs/Twist -r 10 -- '[0.2, 0.0, 0.0]' '[0.0, 0.0, 0.0]'

Please watch out the drone, I do not know which speeds are proper for you.

Hello,

have you tried to post directly a speed in order to see if the robot accepts the command?

rostopic pub /cmd_vel geometry_msgs/Twist -r 10 -- '[0.2, 0.0, 0.0]' '[0.0, 0.0, 0.0]'

Please watch out the drone, I do not know which speeds are proper for you.

LATER EDIT

See this git. Sunk has made a wonderful job. I have used his solution, with some modifications at the robot I've work now.

https://github.com/sungjik/my_personal_robotic_companion/blob/master/my_personal_robotic_companion/src/base_controller.cpp

Good luck!