I am using snapdragon_dev_board(eagle 8071/snapdragon801) having GPS: Telit Jupiter SE868 V2 module and a compatible external gps patch antenna connected with it.
snapdragon_dev_board is having Linux Linaro 14.04(preloaded) on top of it we have pushed PX4 and Flight_188.8.131.52_qcom_flight_controller_hexagon_sdk_add_on.
We have connected our Android Phone(Smart Shone) to the snapdragon_dev_board through WiFi HotSpot.
We have QGroundController(QGC) App in our SmartPhone.
We have launched the QGC App in our SmartPhone.
We have launched the following in the snapdragon_dev_board
So px4 gets launched without any error.
And the PX4 flight stack/Vehicle gets connected successfully to the QGC running in our smart phone.
Its all fine upto here.
But my objective is to plan a mission using QGC and upload it to the UAV and fly it.
Everthing is Fine, all the sensors are well calibrated,ESC is also working fine.
The Only problem is QGC is showing "No GPS Lock found".
If GPS is not found means QGC will not be able to lock the home position of the UAV and the UAV will not ARM and follow the mission uploaded by the QGC.
We have tried with an external GPS also "Ublox NEO-M8N High Precision GPS Built in Compass".
The external GPS is also working fine Still we are getting the same problem in QGC "No GPS Lock found".
And if we see in the GPS Icon in QGC It is showing GPS count=0.
So Can Any help me out. How to Solve the problem "No GPS Lock found".