SparkFun released a new version of the UAV Dev Board today.  It comes with a new, faster processor with much more program memory and RAM, and loads of extra digital and analog IO.

MatrixPilot 3.2 is already fully compatible with the new board, including support for the expanded set of RC Inputs, Servo Outputs, analog inputs, PPM Input, and even the native OSD.

The gyros have even less drift than on the UDB3, and thanks to Bill's continued research and development, the dead reckoning IMU is rock-solid.

Another nice feature is that SparkFun dropped the price down to $100!

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Comment by robert bouwens on October 21, 2011 at 8:14am


that device looks very good.

i tried to lookup the size of the board.

can you provide us with the overall soze of the board?



Comment by Pete Hollands on October 21, 2011 at 8:37am

On the Sparkfun page, on the right hand side, the small pictures, which enlarges on clicking, has rulers next to the UDB4 to let you see the size. You can zoom right in on the images.

Best wishes, Pete


Comment by Dave_fr on October 21, 2011 at 9:02am

Can someone tell me wether picKit2 would be ok to program it ?

Comment by Pete Hollands on October 21, 2011 at 9:15am

It is possible, and Bill has outlined the technique on the UAV devboard discussions in the last few days.

My recommendation is stay with the Microchip mainstream of developers and get a Pickit 3.


Comment by Rana on October 21, 2011 at 9:17am

Pete, thanks for the clarity :)


NS Rana


Comment by Anish on October 21, 2011 at 4:55pm
@pete u planning to bring one along for dz2 ?

Comment by Pete Hollands on October 21, 2011 at 10:52pm

@Anish. Yes I have one to bring (just arrived in it's box). I'm hoping to bring a UDB4 V2 prototype (the same as production except different power chips) in a new plane. I'm putting it together at  the moment for testing MAVLink.

A simple Axion Alpha.

Comment by Martint on October 21, 2011 at 11:30pm

Hello Pete,


I hope that you have the build done for the DZ2, it would be great to see the UDB4 in action!


Are you using one of these Axion Alpha's? I have been looking to put an APM in one of them for a while now, I think I might just copy you with a UDB4 if you are using one of them..... ;)


I've not yet had the pleasure of using the PICkit3 or any other PICkit just yet Pete, will you have one with you on the day at the DZ2, would be great if you had a few moments to spare to show me around the system :)


I also have the Maja airframe, do you know of anyone using this and the UDB4?


I will have my UDB4's, GPS units, PICkit's in store in the next day or so and cant wait to play!! 





Comment by Pete Hollands on October 21, 2011 at 11:49pm

@Martin, I'm using the 3X brushless version. I will bring the my programming environment for the UDBs including the Pickit3.

Maja looks interesting. I don't know actually don't know anyone else that it is using it yet with UDB3 or 4.

One thing on the UDB4. Set everyone's expectations, it's a brand new design. Leading Edge. So we hope there will not be any teething problems, but people need to be realistic. It's flight tested, but it will be a year till we really know all the issues associated with a new design. (It took that long for everything about the UDB3 to emerge).

Best wishes, Pete


Comment by Anish on October 22, 2011 at 1:44am
@Pete look forward to it :)


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