Our problem is when the autopilot is activated in any of the modes it just circles. It does not just circle at a GPS location it drifts and looses altitude as well. We use the Easy Star airframes with APM 1.4 and APM 2.0 with the xbees. Currently we are using the Mission Planner software (most current version) to do all mission planning and parameter updates. We have the configuration files from DIYdrones uploaded onto the APMs and we upload the way-point files like I said earlier with the Mission Planner software. The xbees tell us that the GPS is working and is locked, it also tells where the current heading is and the direction to the current way-point(the APM knows where it is at but it just will not go to where it needs to go...) It circles in all of the modes except we have not tested FBW-A&B at this time. Does anyone have an idea what our problem is? We have flown them in stock airframes and modified airframes with modified PID settings and default settings and I have no clue what is wrong.
Thanks,
Justin
Replies
Hi,
can you confirm that the mission planner gives you the correct location? I read somewhere (also based on personal experience) that it's a good idea to reset APM once the GPS shows a lock. Otherwise you may falsely assume that it has one. Then are you sure that it actually (re)starts the mission and not just loiters around what it assumes is the home location? What happens when you switch to manual and "fly it away" for a while and then switch back to auto?
Sorry.. nothing but general debugging ideas.