Hello, I started today with Arducopter using the APM2.5 and the GPS UBLOX by Crius, before I used Multiwii the ArtuPiratesNG.
The APLM 2.5 power supply is from PWM input, I using the power supply from my receiver, it is preset in PPM mode (FrSky FASST for a T9Z).
I updated the APM2.5 successfully with the last firmware through the Arducopter Ground Station, then I done the Level Calibration and the MAG calibration procedure.
So, all worked very well (on the bench) till I connected the GPS.
When the GPS goes in FIX 3D the artificial horizon starts to move seldom, slightly but it is moving, like moving by hand the APM board, if I disconnect the GPS the board do the correct job.
This is a strange behavior.
I need to solve this issue before to proceed to start with flying tests.
I hope this could be solved easily, and I appeciate any suggestions.