One of the uav projects I started last summer was a fixed blade coaxial rotor flyer that was steered by shifting battery weight in the style of the old Hiller Flying Platform
. I put the project on hold while waiting for some lighter-weight brushless coaxial motors from Maxx Products (CR2805), and then got further sidetracked by the X3D-BL quad project.
This past week, I restarted the project, adding a mount for an… Continue
Added by Howard Gordon on February 3, 2008 at 4:25pm —
Me and my team have come a long way since I first posted on RC-Groups with interest of building a UAV.
I started pretty much from square zero, other than having some experience with Lego Mindstorms. I didn't know why my Stamp was being shorted when I did not use a resistor with an LED. I managed to short… Continue
Added by Simon Pan on February 3, 2008 at 3:52pm —
In an earlier pos
t (and here
), I showed how to switch the Basic Stamp autopilot from the Parallax GPS module to the better EM406
. The reason to do this isn't just the superior reception of the EM406. It's also that the original version of the Basic… Continue
Added by Chris Anderson on February 3, 2008 at 10:30am —
I have read about Curtis Olson's use of flightgear for UAV development, but didn't see any applications to download to get started working on an autopilot with. So I've started on my own:
There's not much to it currently, it just demonstrates that I can receive vehicle state information through the native-fdm udp interface.
Added by Luke on February 2, 2008 at 7:53pm —
If you've been following the exploits of IceBear and a few others, you know that recently they've been beta testing a hot new autopilot that promises to be better and cheaper than anything else in the under $1,000 category. It's called the AttoPilot and I'm delighted that our third… Continue
Added by Chris Anderson on February 2, 2008 at 9:00am —
Q: You decided to go with an IR sensor (aka "thermopile", shown) rather than a gyro and accelerometer in an IMU for the first version. Can you explain how you came to that decision?
I have found that even without fancy code, the thermopile is a… Continue
Added by Chris Anderson on February 2, 2008 at 8:30am —
Q: In a nutshell, what's the AttoPilot project about?
The AttoPilot is about bringing a full-function powerful autopilot to a larger crowd, for many of whom "DIY" is not their interest, just something they can buy and use. I myself wanted to buy a hobby autopilot in late 2005 knowing… Continue
Added by Chris Anderson on February 2, 2008 at 8:30am —
After a few more tests, I now have the final version of the ArduIMU. The main problem was the calibration of the gyros: converting the raw data to degrees/s. I had to change the source code, compile it, upload, and repeat it over and over again. Totally waste of time.
So i configured Arduino to externally adjust the gyros and… Continue
Added by Jordi Muñoz on February 1, 2008 at 10:30pm —
Every member of DIY Drones has the ability to create their own blog posts and discussion topics (Please do! This is a community site and its vitality depends on your participation).
Doing so is easy: click here
to create a blog post or click here
Added by Chris Anderson on February 1, 2008 at 8:30pm —
Okay, now that we've connected our PC to our autopilot's GPS
input, let's let Curt walk us through all the things we can do with FlightGear. Starting with this:
Q : Is there a way to use FlightGear to plot a… Continue
Added by Chris Anderson on January 28, 2008 at 8:00pm —
After some distractions and delays, my uav projects, first described here
- are back on track. Yesterday, I received the needed firmware update for the AscTec (X3D) quad - it's now possible control the quad via the serial interface with no FM transmitter in the loop. As before, the controller is an SRV-1 Blackfin Camera Board
Added by Howard Gordon on January 28, 2008 at 3:58pm —
Matt Chave's CUAV project is a great example of custom autopilot building, but one of the most interesting parts about it is that it uses magnetometers--digital compasses--in addition to the regular accelerometers and gyros. In the second part of our… Continue
Added by Chris Anderson on January 27, 2008 at 8:30pm —
For the second interview in our series, we'll go to Australia, where aerospace engineer Matt Chave has been developing a very interesting open source UAV that uses magnetometers in an interesting way (and he's using FlightGear for simulation!).… Continue
Added by Chris Anderson on January 27, 2008 at 8:23pm —
In an earlier post
, I discussed some of the options for connecting your autopilot to your PC for GPS simulation. I've now tried several of the options on our Basic Stamp autopilot, and I have some recommendations on what to do (and not to do).
Rather than try to re-use… Continue
Added by Chris Anderson on January 27, 2008 at 7:00pm —
[In the previous installments of my interview with Curt Olson, I focused on using FlightGear for GPS simulation--you fly the plane around in the flight simulator and the software outputs GPS data to fool your autopilot into thinking that it's the plane in the flight simulator, so you can see how the autopilot responds to being off course. Now we're going to… Continue
Added by Chris Anderson on January 27, 2008 at 6:54pm —
The blimp UAV project is moving along nicely. We've picked a general size
and selected most of the components
. We've now decided to go with a PIC processor, rather than the Stamp, Propeller, or… Continue
Added by Chris Anderson on January 19, 2008 at 8:30pm —
(part one of the interview is here. A followup to the post below, with some more specific advice, is here.)
Before we drill down with Curt on the specifics on one way to use… Continue
Added by Chris Anderson on January 18, 2008 at 3:00pm —
I'm delighted to start our interview series with Curt Olson
, the creator of the cool open source FlightGear
flight simulator and a UAV engineer in real life. When I started researching how to… Continue
Added by Chris Anderson on January 18, 2008 at 8:30am —
$10,000 $5,000 $1,000 $500
is too much to pay for an autopilot, especially one that doesn't do exactly what you want."
Added by Chris Anderson on January 17, 2008 at 10:30am —
While it's cold and windy outside, the best way to test our UAVs may be simulations. As best as I can tell there are at least two ways to do this, but I can't say I really understand either of them well enough to implement:
- Generate synthetic GPS data with your PC's serial port, see what the autopilot does as a result.…
Added by Chris Anderson on January 15, 2008 at 7:00pm —