Well it has taken me about a month but I think I finally have a plan for a UAV.
Please excuse my childlike MS Paint style diagrams! This is what I would like it to be able to do. It is using in the BASIC…Continue
Ok bear with me here because i have no drawings or diagrams. Basically this is a device designed [thought up] to transmit or receive or tranceive (im not sure how to spell it). Basically this will transmit information about your aircraft from speed to altitude to lat-long basically this is connected to a receiver attached to an OLED screen so you wear it on your wrist and get all of your information on your wrist instead of a ground station in a big van thats wasting gas. If it happens to be a… Continue
Build an airframe to be able to travel aprox 900 miles.
Use a ENT pnd as the controller and gps platform.
Comunicate with the UAV via cellphone modem to laptop.
Use Google Earth as the mapping and position indicator.
Photograph the area of interest storing info on board UAV to be downloaded when recovered.
Using a SMD Accipiter Badius as a basis,enlarge the airframe by 2.5 times.
Using a weedeater motor, centre… Continue
I simulated the bs2p under msfs last night . i programed a waypoint in marysville ,wa ,engaged auto around sea-tac airport, it took an east heading ,flew over the cascades into eastern washington then did a 180 flew to around mt rainer then headed east agian then i think my batteries died and it drifted… Continue
Some of you may have noticed that for quite a while SparkFun has been listing a "UAV Development Platform - ET312 + IMU" that's always been out of stock. I backordered one out of curiosity last year, and pretty much forgot about it. Then, last week, SparkFun called and said that… Continue
In an earlier post, I discussed the importance of having a redundant failsafe board so you can regain control in the advent (likelyhood!) of an autopilot failure. Basically, what that board does is sits in-between your autopilot, RC receiver and servos. You switch it between… Continue
We love FlightGear and all that it stands for, but the truth is that it's a bit complicated for beginners. For the rest of us, there's the old stand-by, Microsoft Flight simulator. There's a free plug-in for MS Flight Simulator 2004 called… Continue
Basically here is the site it is a short range inferred radar that could be used for a failsafe in case your uav gets close to the ground. However it is slightly bulky but that can be easily modified because it was made for parking cars. This includes a servo with an inferred transceiver or receiver and transmitter separate, i haven't really looked into it very far. If you are board and want to serf the web go to "… Continue
We've forked the Blimp UAV into two projects, a minimum and a maximum one. The maximum one is the one that's using the NorthStar "synthetic GPS" directional system and all sorts of other goodies to be a real indoor UAV, with full room sense and navigation ability. That's moving… Continue
As some of you know, this site is based on the Ning platform, and they've just rolled out some changes. Relevent parts for us include:
--Mass Uploader for Photos, Videos, and Music/Podcasts
You'll now be able to upload up to 100 photos, 30 videos or 100 songs/podcasts in one fell swoop. That's not to say that adding all of this stuff won't take forever, but go grab a snack or five and you'll be all set.
--Blog "Improvements" - Round 1
Frankly, this is a… Continue
Big improvement in stability with the addition of a simple duct made from a sheet of 2.5mm RCF (extruded polystyrene) foam from rcfoam.com. The RCF is similar to depron that was recommended by another forum member, but somewhat more flexible and higher density. I was able to bend the RCF sheet to a 12-inch diameter, while a similar thickness depron sheet broke when bending.
There is some yaw rotation at the beginning of the clip, but you can… Continue
Another advantage of GPS simulation: you get to discover horrible glitches in the matrix, such as the inconvenient fact that GPS comes in different dialects, each of which requires different parsing. I found this out when my GPS parser was working with the simulator, but not the real EM406. The problem turned out to be that the simulator outputs GPS time as… Continue
I've had a couple people ask why there's such an emphasis here on GPS simulation. The simple answer is "Because we don't want to lose our UAVs!" With regular robots, when they've got bugs or software crashes, you just pick them up and fix the problem. With UAVs, they're likely to fly away forever or end up in a pile of pieces. They're more like satellites or Mars rovers than battlebots--you can't fix them from the ground, and when they go wrong in the air, it can be catastrophic.
Alright i get the 99th blog post or 100th. I might have lost count but ill let the next person have the 100th. I want to start out by saying congratulations guys this is a very successful site with 500+ people and still growing. We all owe Chris Anderson one for making this site!. Um tha the tha tha that thats all folks!
Now that I'm doing hardware-in-the-loop testing with the GPS simulator, the bugs in my code are showing up quickly, just as they should. Here's one small-but-deadly one I found this eve: all the code using the FT639 servo controller chip should have a special serial port configuration line that's different from the one we use for the GPS module. Turns out that… Continue
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
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…
In an earlier post (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