Hope this is not a duplicate post (I've seen it before somewhere)
A mere 30 centimeters long, the MAVion combines fixed wings with two counter rotating propellers, allowing it to operate with high aerodynamic efficiency--even in adverse conditions, according to the professor.
Like a few others, I've been working on a UAV Helicopter but I've hit a bit of roadblock and I'm looking for some helpful advice from the community. At the moment, when I try to fly the helicopter (so far as high as 4 inches off the ground), it tries as hard as it can to bank left because it thinks it's leaning at >40%. The problem is vibration and I'm looking for any advice I can get on how to overcome this problem.
Below is some slightly massaged data from… Continue
I just added a pitot to my ezstar (http://bordelon.net/ezstar) and did a flight. Naturally the plots of the airspeed sensor and GPS velocity (projected onto the X axis... straight thru the nose) did not seem to match. But should they? I figured any wind would skew the results, so how do you know you're calibrated?
I first tried to make a "manometer" with a tube of water but that seemed to just make a mess and was off by 50% in the end.
I spent some time on the software for the ground control station lately and did some telemetry flights with my UAV Flying Wing.
Nothing special but I thought I'll post this anyway so people know that I'm still alive. The software is a… Continue
Just a reminder that entries are due at 12:00 midnight PST on Sunday for the current T3 contest. Right now we've got six entries, and it would be great to get a few more in today or tomorrow. I'd hoped to enter an ArduPilot and AttoPilot, but I had three straight bad… Continue
I'm currently trying to connect a Sparkfun logomatic v2 serial datalogger (WIG-08627) to the ardupilot card. I understand how to do it using anolog connections ,but I can't figure out how to do it through a serial connection. Does anyone know how to connect the ardupilot with the datalogger using a serial connection?
This team of 17 years olds designed this RC blimp from scratch, and learned a lesson in weight control and using optimal components, since this seems to be based on heavy Vex parts. Next up: autonomy. If they want a Blimpduino, we'd be happy to send them… Continue
is a long long long drive from the east bay on 25mph roads. Then on weekdays you're greeted with permit parking only, anywhere within 1/2 mile of the lake bed. Fortunately, U can park in the golf course parking & walk 1/2 a mile to get in.
It has scattered tall weeds, making landings tricky.
It's a very large area with spectacular views from 400ft,… Continue
SOme time back (within the last two or three months) I recall seeing a ground station setup where a guy was using a graphical LCD module similar to the one proposed for the NEW ArduStation Mega, and he had a very cool interface, even had an artificial horizon on the screen - DOES ANYONE ELSE REMEMBER SEEING THIS?? Wa it here or on some other forum??
I am looking to make an electronic steering system for my magnet steered free flight model aircraft. GPS is not allowed by the rules. A gyro compass seems to be the answer, but I have not found any at a reasonable price. A gyro updated by an electronic compass to correct drift would also work I think. The aircraft dynamics are too much for a tilt compensated magnetometer.
Can anyone give any advice on an autonomous landing setup. What should I use to sense change in altitude and do you think it could possibly work to land on water. Do you think laser or ultrasonic will work over water?
In Bill's recent pod cast he talked about how the imudevboard experienced a random nose dive or extreme over estimation in the pitch (theta) axis. His theory was that the noise due to engine/aircraft vibration was causing the gyros to give inaccurate readings. He said that he put the imu in foam and the problem went away. I don't know how repeatable his experience was or how many test vehicles this "technique" was run on, but I find it no… Continue