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Pixhawk autopilot problems.. Help?

Posted by Calum McIntosh on June 25, 2015 at 12:49pm

Hi all,

I’m a complete novice and have been attempting to hook up a PixHawk to HobbyKing’s Bixler 2.

First test flights went well in MANUAL/STABILIZE and FBWA modes, but we had an issue when AUTO mode was selected. We’d loaded on waypoints via Mission Planner, double checked them, and attempted to set the craft to follow them once in the air, however the Bixler didn’t gain altitude or head towards its waypoint and required manual take over to bring it back.

N.B. there’s NO pitot tube on board, although all air speed parameters have been disabled.

Why is the craft not following its designated path once switched into AUTO mode? It seemingly stays in FBWA mode. Have we missed a parameter, perhaps one which requires a pitot tube?

I’ve attached the two flight logs from the tests.

Any ideas?

Thanks

64.BIN

67.BIN

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Replies

                • Calum McIntosh > Chris Anderson June 25, 2015 at 2:23pm

                  Will try this tomorrow, thanks for the advice!

                  There's no chance one or some of the other parameters are causing the problem?

                  • 3D Robotics
                    Chris Anderson > Calum McIntosh June 25, 2015 at 2:36pm

                    I can't think of one. If did a standard install of the latest code and went through the Mission Planner setup process, it should be fine. There should have been no need to change anything, aside from the tuning previously described  

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