Developer Comment by Ryan Beall on January 31, 2010 at 11:18pm

Congrats Jason, How did the flights go?

Comment by Rana on February 1, 2010 at 1:44am

Congrats Jason !
Pl. share more about your flight experience. Post video if any.

Comment by Rana on February 1, 2010 at 2:04am

Hi Jas !
Why the released source zip "Ardupilot_2.5.0rc.zip" is not available in the download area at google code ?
http://code.google.com/p/ardupilot/downloads/list

Admin Comment by Thomas J Coyle III on February 1, 2010 at 5:35am

NS,

It appears to be now as I just did a download from the google code area.

Regards,
TCIII

3D Robotics Comment by Chris Anderson on February 1, 2010 at 9:20am

Thomas, I think he meant the zip file. I've now put the zip file in the Download area here, although I won't feature it until we've got enough feedback from the community that it's as stable as we think.

Comment by Rana on February 1, 2010 at 9:57am

Chris, now its there, thanks !

Developer Comment by jasonshort on February 1, 2010 at 10:27am

Hi Guys,
The flights were very informative. I cleaned up some startup code to make the status LEDs match the prior versions.

I had a lot of trouble with the IR under reporting it's angle. We had quite the cold and foggy day and the sensors had some issues. I lowered the IR_max minimum value and the problem went mostly away. I would love to do a better calibration in the field - say hold the plane at 45° and set that as 45°. The new value is in the code now so there is nothing to do.

I also had issue with over steering at slow speeds. I took a tip from Ryan and added a proportional scale for roll_P so that it goes down the slower you go. I limit that to about a 60% reduction. I start reducing below 30 from the pressure sensor. That may need to be adjusted on a per plane basis but for now, it's low and pretty safe.

I also lowered roll_I because the easy star doesn't seem to need it much if at all.

Tim flew the FLY_BY_WIRE mode which lets a novice pilot control the plane with ease. The FBW mode was also instrumental for debugging my sensor issue.

Loiter looked good. I reduced the radius in the default header as Chris's plane looked to be flying well outside the radius. I think this has to do with the plane not aggressively holding the line enough. I really need to hook up telemetry and refine this, but it does work nicely! Maybe Ryan you can help here.

Jason

Comment by Reto on February 1, 2010 at 11:43am

Cool, ver. 2.5 goes in field testing. I have a question: at this point, only uBlox and EM406 in binary mode are supported as per the current versio of 2.5 manual. Is the implementation of Locosys GPS and NMEA parsing planned or abandoned? Thanks for your feedback.

3D Robotics Comment by Chris Anderson on February 1, 2010 at 11:47am

Reto, NMEA is in the code. It's supported:

Developer Comment by jasonshort on February 1, 2010 at 11:54am

NMEA is implemented but not fully tested. Anyone want to help? PM me.

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