Position setpoints navigation simulation

how to send a list of postition setpoints one after another in offboard control mode in rospy

you could create an event listening to uORB topics, fmu/trajectorypoint/in, and whenever the drone has reached a set-point it sends out a ping. Once you process the ping as a service, you could send in the next way-point (either pre-defined or as an algorithm-gererated) via ros nodes.