@mrivi
I had a look at the mavros/rc_io and I realized it is already a published Topic in my Basic configuration - and yeah thanks a lot for your advice. Overall the Logdata and the Rosdata are quite similar, but if I zoom in I see some differences. In the Picture below the datasets are evaluated in matlab and searched for the arming-rc-input which will result in the px4 arming and also starting the ulog on arming - so yeah let’s call it a pseudo sync along their timestamps …
But these values should be the same ?!
As far as I know the data link chain should be:
uLog= uOrb → mavlink servo_output_raw → mavros rc/out
so I wonder about the difference - do you know anything about it?
Maybe some kind of dataconversion on mavlink side?
Maybe noise while transmitting?
Maybe still some bad allignment on my side of rosbag-csv and ulog-csv in matlab…