cmd_vel z value z is fixed
I'm trying to build an autonomous mapping and navigation robot with rplidar, arduino ( controlling the motors and ROS)
So far I I have got lidar, hector slam, hector exploration planner, and run the simple_exploration_controller and of course rosserial working fine.
I'm getting values from cmd_vel , as I change the rplidar , sometimes the x value changes but I'm getting a constant -1.4 for the z value and constant 0 for the y value .
Is that normal ?
Are these the linear or angular values? a -1.4 value on the Z rotation would imply the robot is trying to turn.