I'v connected the ulanding to a pixhawk running the latest arducopter. I'v configured - RNGFNDR_TYPE to 11, SERIAL4_PROTOCOL to 12 and SERIAL4_BAUD to 115. I've wired the ulanding according to:
I get "bad lidar health" error message in the mission planner, and the sonar data indicates constant 0.
Any help? what am I doing wrong?