I'm facing the same issue with the airspeed sensor, no matter how many calibrations I make, after a while the airspeed increase progressively. (aprox from 0 to 15m/s in 15 minutes after calibration is performed)
Has anyone find a solution?…"
I am looking for GPS simulator in order to simulate the pixhawk is moving to test the camera trigger distance settings, my system always miss some photos during a mission. Did you post the GPS simulator you did?