3D Robotics Comment by Jordi Muñoz on April 25, 2010 at 8:09pm

John, the beta board don't have the fuse, but the functionally is the same... There's a new board with minor changes that will be released later, the first Sparkfun batch (the one that may be released soon) is very similar to the beta board...

Admin Comment by John C. on April 25, 2010 at 8:39pm

Thanks for the response! We'll see how they all come together shortly!

Comment by Alessandro Vitali on April 26, 2010 at 12:52pm

Tanks guys for this awesome Work tanks, Jordi, Chris, Bill and all the development group of this project.

I don't see the time to prove IT on my airplanes .

Developer Comment by Doug Weibel on April 26, 2010 at 6:46pm

@Andrew, I don't know if I would agree with your statement on the gains. I have found the servo gains to be fairly tolerant of airspeed variation, and the navigation gains need to be dependent on ground speed, not airspeed. Having or not having an airspeed sensor has no bearing on managing airspeed when flying with or against the wind. The airframe does not know what the ground is doing beneath it. It will fly the same airspeed for a given pitch angle and throttle setting regardless of it is heading upwind or downwind.

I have flown the same airframe with ArduPilot w/ 2.6 both with and without the airspeed sensor. For general waypoint flying I found the system to be easier to set up and to produce equal navigation performance without the airspeed sensor.

I think having the airspeed sensor optional is OK. It is needed for some applications, but not others, and it adds complexity and cost.

3D Robotics Comment by Jordi Muñoz on April 26, 2010 at 7:45pm

BTW i also forgot to mention that Invensense gyros are inmune to RF interference, 900mhz xBee for example.... The current ST gyros are affected by some modems...

JDrones Comment by Jani Hirvinen on April 26, 2010 at 8:07pm

@Jordi have you been doing any distance testing with ST / 900Mhz XBee's? How close xbees starts to interference gyros? And how bad is it?

3D Robotics Comment by Jordi Muñoz on April 26, 2010 at 8:15pm

Well for me works after 15-20cm away....

Admin Comment by John C. on April 26, 2010 at 8:43pm

Did you guys find a fix for the XBee config resetting issue when leaving the XBee attached to AP when plugging in the battery?

Comment by Miles on April 26, 2010 at 8:46pm

has anyone tested the Maxstream Xtend radio at all??

3D Robotics Comment by Jordi Muñoz on April 26, 2010 at 8:54pm

No, still there for Ardupilot V1, is not fixable because the modem is sharing serial port... In mega will have dedicated port.

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