Hi, I recently purchased the LiDAR ld19, and following your instructions . I was able to display the laser in rviz through the command
roslaunch ldlidar_stl_ros viewer_ld19_noetic.launch
after installing hector_slam i run the command rostopic echo /tf
and i get this screen
I have tried various things but I can’t see the lidar in the default map of hector. Can someone help me please?