The UAV Devboard is back in stock at SparkFun, with a new design.The reason for the design change is that Analog Devices no longer makes the gyro that we were using on the previous board, so we have switched the design to the LISY300AL. Paul Bizard and I have thoroughly tested the new board on fixed-wing aircraft, the LISY300ALs work just great with DCM.We have modified all of our existing firmware to be able to run on either board, and will make sure that all future firmware will also work on either board. If you have written firmware for the UAV dev board, you will only have to make a few minor changes to run it on the new one. The two board designs are nearly identical. The only differences are:1. The new board uses LISY300AL gyros instead of the ADXRS401, and the 6g range instead of the 1.5g range for the accelerometers. This will allow you to provide aerobatic control without saturating the sensors.2. The gyros, the accelerometers, and the A/D reference voltage are all tied to the 3.3 volt regulated supply. This will totally eliminate drift of gyros and accelerometers due to supply voltage changes.Each firmware project now has both a "green" version for the previous board and a "red" version for the new board.
@John,
One more idea. I wonder if there are any "green board" owners who wished they had waited for the "red board" (for example, like Chris Anderson) who would be interested in selling a green board to you, and buying a red board from SparkFun to replace it. Maybe you could post a discussion to find out, if you want a green board. Just a thought.
You are correct, heli applications might well need the more expensive gyros, but there is no way to tell without specific data. It might be that my board will work ok in a heli if you take care to mount it to reduce vibration. Or maybe not. If anyone wants to give it a try and decides to use my board to stabilize a heli, I will help them.
If I were to offer a board for specifically for heli applications, I would probably start from scratch on a new design for helis that would include more servo channels, and probably would use the dsPIC30F6015, and possibly a 3 axis magnetometer.
But I am finding that just supporting the board that I have, which really targets just fixed-wing aircraft, is taking more time than I thought, so I have put a heli board design on the back burner for now.
Brian's board looks like just the thing for heli applications, I am really impressed. Plus, he has ported DCM to it, and it has a magnetometer. I expect he is going to get some great performance out of it. Top flight stuff.
If I understand correctly the more expensive boards only differ in the gyros. As noted in this thread, heli applications might need the more expensive gyros. If they are no longer available, you might consider offering them up for heli apps. I have to make a decision between Bill's board and Brian's. Brian's seems more appropriate for heli application with 3 servo swash and throttle control (plus other sensors), but not yet available. Sure would be nice to get some specific data on these two boards on a heli.
Comments
is this one?
http://www.sparkfun.com/commerce/product_info.php?products_id=9038
can they ship to Taiwan?
and what is debugger? can i but in there too?
thanks a lot
here is sparkfun website, have fun :)
i can't find sparkfun , is that a website? so where i can buty them toghter or in the same way??
sorry, just pool english...
You can buy the UAV DevBoard (UDB) from SparkFun for $150 US. You will also need a programmer/debugger with cable and connector, a GPS radio with cable.
You will probably want to read the information on the UDB website.
Bill
One more idea. I wonder if there are any "green board" owners who wished they had waited for the "red board" (for example, like Chris Anderson) who would be interested in selling a green board to you, and buying a red board from SparkFun to replace it. Maybe you could post a discussion to find out, if you want a green board. Just a thought.
You are correct, heli applications might well need the more expensive gyros, but there is no way to tell without specific data. It might be that my board will work ok in a heli if you take care to mount it to reduce vibration. Or maybe not. If anyone wants to give it a try and decides to use my board to stabilize a heli, I will help them.
If I were to offer a board for specifically for heli applications, I would probably start from scratch on a new design for helis that would include more servo channels, and probably would use the dsPIC30F6015, and possibly a 3 axis magnetometer.
But I am finding that just supporting the board that I have, which really targets just fixed-wing aircraft, is taking more time than I thought, so I have put a heli board design on the back burner for now.
Brian's board looks like just the thing for heli applications, I am really impressed. Plus, he has ported DCM to it, and it has a magnetometer. I expect he is going to get some great performance out of it. Top flight stuff.
Best
John
If it makes you feel any better, I bought 2 of the green boards myself. ;-)
Bill
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