"Honestly nobody ideas ? Is there someone who could take a look at the logfile ? This behavior is strange.. I verifiesd it in multiple flights now. The sonar altiitude matches the baro, but sonar desired alt does not change ! What is wrong ?"
"Hi Will,
i dont think that you could pick much better motors than the U8. The vibrations you experienced are very likely caused by insufficient balancing of the props. Or you bought used motors that have been crashed and have a bended shaft…"
yes I did... the sonar is mounted on foam, shielded with a can and I also used the capacitors as suggested in the maxbotix article. As you can see in the log, the values seem to be correct. However I wonder why the copter reacts…"
"Added a screenshot... Alt seems to follow Dalt.. but why does dsAlt not change ? I marked with red arrows where I was walking underneath the copter... it climbed but does not come back down... honestly nobody any ideas ?Graph.JPG"
I always use these little lipo warners. They dont give me the drawn mah´s, but much more important the prevent me from discharging single cells too low and warn me when cell voltage drops because of full throttle accelerations. Why dont you try…"
Hi Forums,I attached a Maxbotix 1240 sonar to my pixhawk and it works good so far. All testings on my desk show correct sonar values. However while flying in alt hold I can use sonar to rise by standing simply underneath it but then it wont descend…