Re: [Paparazzi-devel] Multirotor Flights

[Loic Drumettaz]

Hi Kadir,

The next step for you is then to be able to switch to hover mode. For this you need to calibrate the magnetometer and define the local magnetic field in your conf.
Also, before the first hover you should check that the magnetometer measurements are not corrupted with motors current magnetic field.  Actually these current are mainly generated by power wires, which must be twisted to reduce the magnetic field generated. Also, the magnetometers can be calibrated to compensate this. See mag current calibration on the wiki.

After the first successful hover, it should be quite easy to switch to nav using example airframe configs and flight plans.

For the nav, first you can take off in rc mode, and tune the horizontal guidance loops and reference generator by moving from a waypoint to another.
Then, the vertical nav (loops and reference generator) can be tuned by moving the waypoint altitude.
This is well documented on the wiki, maybe a step by step tuning page could be added...
After this, you should be able to perform autonomous take-off and landings.
Once there, do not hesitate to ask for more tips.
Loic

Le 14 févr. 2014 07:29, "Kadir ÇİMENCİ" <address@hidden> a écrit :

Hi Loic,

At this moment, i have flights with manual mode only with stabilization blocks they were all successful. And also i have tested the vertical navigational controller for altitude hold and climb modes. They were successful too. But i have no chance to test hovering and navigating horizontally. I am expecting the multirotor to fly between waypoints with straight lines and hover at some horizontal points. I had achieved that kinds of flights with Apm 2.5  4-5 months ago. I hope i can make it with paparazzi too because i believe paparazzi project have a stronger structure than the other open source projects. I am looking for someone who had achieved flights like this to encourage me :)  Thanks for the answer..

Kadir

2014-02-13 21:22 GMT+02:00 Noah Martin <address@hidden>:

Hi Loïc ,
Il faut qu il fasse une recette aussi.
On peut lui envoyer un log d une mission photogrammétrie  avec les coordonnées des waypoints associés ainisi que le bloc.
Walid

Le 13 févr. 2014 16:31, "Kadir ÇİMENCİ" <address@hidden> a écrit :

Hi ,

I need some help :) Im looking for someone to share experience with multirotor flights with paparazzi . It will be great if  i can find a flight data/log with waypoints autonomously. Thanks for any help in advance..

Kadir

2014-02-12 14:54 GMT+02:00 Kadir ÇİMENCİ <address@hidden>:

Hello everyone,

I have noticed that the feedbacks about the flights with multirotor frames are so weak. I cannot find any flight log/video/kml etc. except for some ardrone flights with paparazzi on youtube. I am preparing to my first flight with Paparazzi on LisaM v2.0 with a quadrotor but can't find any refernce flight. Can you please share with any flight experience with multirotors?

Thanks ,
Kadir

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