Cannot receive data from velodyne

asked 2019-08-07 11:17:18 -0500

rLee gravatar image

I'm using ROS Kinetic and Ubuntu 16.04 on a Jetson TX2 installed on a Jackal robot (see: )

The Jackal has a VLP16 lidar installed, with files from the following page downloaded: (all instructions on this page were followed)

When I run rostopic echo /velodyne_points or /velodyne_packets, or rostopic hz for the two, I receive nothing, or the line "no new messages"

I have used Wireshark ( and can see that the data from the VLP is being published, but I think that for some reason ROS is not receiving it.

Thanks for any help!

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Are you running rostopic echo on the TX2 or on a remote machine? If its on a remote machine then you likely don't have your ROS_MASTER_URI and ROS_IP environment variables set correctly

prefpkg21 gravatar image prefpkg21  ( 2019-08-14 21:13:52 -0500 )edit