LibrePilot Forum

General Category => General Discussion => Topic started by: reinhpe on January 24, 2016, 11:06:53 am

Title: MAG not visible in Flight data
Post by: reinhpe on January 24, 2016, 11:06:53 am

To make a long story short: The MAG is always black in the flight data window!

I have made all calibrations with success, GPS is working properly, Motor Output, Tx/Rx all set and working! But whatever I have tried - the MAG stays black in the flight data window... (see attachment) Did change the AuxMAGsetting in system from 'both' to 'OnBoardOnly' to be sure that I only use the OnBoard MAG!

A little bit lost - did I miss something? It looks like if there is no MAG present, but why can I do the Calibration - and why is the compass working in flight data window if I turn the FC?

I tested it without the copter frame (no ESC attached) - does not make any difference...

Every help highly appreciated,

thanks in advance,

Peter

Title: Re: MAG not visible in Flight data
Post by: cato on January 24, 2016, 11:13:53 am

Which controller are you using? It looks like Revo, but just to make sure.

CC3D has no mag, so it is normal on that controller to see no mag :)

On Revo, though, if you set to "onboard", it should be red or green.

Title: Re: MAG not visible in Flight data
Post by: reinhpe on January 24, 2016, 11:15:29 am

Sorry - forgot to post: It's a Revo (original, no Clone!), so MAG should be present! And yes, it is set to OnBoard now, but still black!

Peter

Title: Re: MAG not visible in Flight data
Post by: cato on January 24, 2016, 11:28:09 am

ok :)

Well, I managed to get black mag with wrong settings, too. Let me check my memory check list :)

- when you first boot it, Revo's Attitude estimation is set to "Complementary". This does not use Mag, so it's off, then. Look at "Configuration->Attitude->Settings"
- To get Mag reading you need to switch to "GPS". I had and still have trouble to get this mode running reliably.

I guess that you are in the process of setting up a multicopter. I found it very useful to keep the quad in complementary and forget gps and compass while the quad is not tuned well. Only after I got it reliable stable in the air, I went into setting up GPS mode, which is a whole new chapter with lots of possible mistakes and problems.

Title: Re: MAG not visible in Flight data
Post by: reinhpe on January 24, 2016, 11:36:46 am

Many thanks - that did the trick! I will follow your recommendation and tune the quad first without MAG and GPS and if stable enough try to get the best out of the additional devices!

Again - many thanks for your help!

Title: Re: MAG not visible in Flight data
Post by: cato on January 24, 2016, 01:19:52 pm

you're welcome :)
Currently both my quads run complementary again, as I changed a lot recently again, and want them to behave well before I go back to GPS mode. That will happen when weather gets better again :)

Title: Re: MAG not visible in Flight data
Post by: LaserSteve on March 24, 2016, 06:59:26 pm

Did you ever get your MAG alarm green?
I am having the same issue and can not use the GPS until it (MAG) is working.

Title: Re: MAG not visible in Flight data
Post by: f5soh on March 24, 2016, 07:01:24 pm

Already answered i think:
https://forum.librepilot.org/index.php?topic=1184.msg8669#msg8669