Hi Vinay,
If you want to set the robot's velocity by directly publishing
messages to the cmd_vel topic (from the command line), try this:
rostopic pub /cmd_vel geometry_msgs/Twist '[0,0,0]' '[0,0,0]'

Replace the 0s for values you want to set, with the first 3 being
linear velocity and the latter 3 being angular velocity.
-Rishi

Rishi Bedi
rbedi100@gmail.com



On Thu, Jul 15, 2010 at 11:55 PM, Vinay K <vinay.csir@gmail.com> wrote:
> Hi Eitan,
>
> I have completed p2os tutorial whatever is given in
> http://www.ros.org/wiki/p2os/Tutorials/Getting%20Started%20with%20p2os. I
> can see battery status. I don't have joystick so I couldn't test joystick
> commandline. Rest how to access sonar sensors/hokuyo laser/odometry; sending
> velocity commands are not known to me. I don't know the objects names
> defined for accessing sensors data published over ROS and same for velocity
> command.
>
> Actually need help for p2os.
>
> Vinay
>
>
>
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