I cannot use PX4Flow together with a motion tracking system (I use Optitrack).
By looking at the images sent via USB when the PX4Flow is pointed directly towards a mocap camera, it is clear that the PX4Flow sees the IR leds (850nm) flashing at 100Hz. When pointed at the ground, the brightness of the image jumps randomly.
When flying a quadcopter in position control using PX4Flow as main sensor, the position is held stable (~10cm oscillations) when the mocap LEDs are turned off. However large drift occurs (~5m drift) when the LEDs are turned on.
I did not expect to have this problem as the PX4Flow’s lenses are described as
16 mm M12 lens (IR block filter)
Is it common to all PX4Flows on the market, or did I buy a bad copy?
Did others have the same issue? If yes, did you solve it by adding another IR filter to the lens?