"Naomi,
Yaw angle is heading, which is the direction the aircraft is pointing, which is not the same as which direction the aircraft is moving (course over ground) because of the wind. You can compute one from the other if you know the airspeed of…"
Latest Activity
William Premerlani replied to William Premerlani's discussion robust estimator of the direction cosine matrix
Oliver G. replied to Oliver G.'s discussion Is there a limit for DO_DIGICAM_CONTROL commands?"If it is as easy as it sounds ;-) this would be great. But would it assure that the GPS-coordinates of the shutter release can be obtained in a file, even if it were many hundreds or thousands?
To me it would be sufficient to "Start…"
Yannick replied to Craig Elder's discussion APM Copter 2.9.1.b has been released"Wow! The next RC :) Going to test it when our rain and storm stops in the north of Germany.
Have you read my bug report? Its a quite serious problem:
There is a really big problem when switching between the different flight modes.
With Flightmodes…"
Frank Bernd replied to Frank Bernd's discussion Developing a horizontal aligned flight system"No one have a idea or is interesting in the development of that new system?"
Kim Skatun posted a discussionPressure sensor
Hi, there are many pressure sensors out there on the market.I have the bosch BMP085, the f3sky(same as BMP085?) and the MS5611 sensor, however i am looking for a sensor with tube collection, does anyone know some of this type?I want to compare the different altitude sensors under different speed and accelaration and see how they deviate from my fullsize glider altitude meter.KimSee More
Yannick replied to Oliver G.'s discussion Is there a limit for DO_DIGICAM_CONTROL commands?"Yes Nick, that would be the best solution.
As oliver already said, triggering by time is not very useful but a trigger every 30meters would be perfect.
Maybe you can add a new Command. "Start Digicam Trigger" with one value (meters) and…"
DeveloperOlivier ADLER replied to Daniel M.'s discussion esc:telemetry via apm 2.5
"
It is not supported. You'll have to write custom code to do that.
Are you able to write C++ code yourself ?"
Anglebender posted a discussionIs my APM 2.5 bricked?
Whenever I initially use the latest version of Mission Planner, I reflexively "upgrade" the APM 2.5 firmware. It's an instinct I've developed after working with computers for 30+ years to make sure everything is concurrent, and I've done this for the last 6 revs of the MP. I take it this is different than flashing an ordinary eprom, because reflashing something usually results in damage to the eprom. Besides, it would see that the firmware is up to date and wouldn't touch it... right?I DL'd MP…See More
Duffy replied to Duffy's discussion Gyro noise Arducopter APM 2.5 arducopter 2.9.1b"If I remember right, someone mentioned that this is typical of a pre-armed response, ie noise/jittering reduces once the copter is armed.
In my case this was predominantly cause by a bad setup of the potentiometers that controlled the…"
MV Reddy replied to Christopher Cooper's discussion Trouble connecting APM2 to Virtualbox"Thanks for the heads up WRT rebooting, Vishal"
Brian Boatright commented on Chris Anderson's blog post Flight of a "Cyclocopter""I watched the video and the hover was not that stable. As far as the design feature, it's massive and has more mechanical parts to fail during flight. Even if it's more efficient it will never been so much more efficient than the cost of…"
Tom replied to Duffy's discussion Gyro noise Arducopter APM 2.5 arducopter 2.9.1b"I too have this. As, I'm sure most people do. I would love to know if there is a fix."
Gate Crasher posted a discussionQuadrotor DIY Flight Controller (dsPIC) Problems
Hi to everyone. We've been working on our own quadrotor with the flight controller running on a dsPIC microcontroller. We're pretty much good to go, only that we've been testing for nearly a month now and our quad has yet to take off properly and is simply oscillating once we give it a throttle command high enough to take off. Our IMU is a pololu mini-imu v2 consisting of a L3G4200D gyro and LSM303DLM accelerometer + gyro and we're getting our attitude feedback from a complementary filter based…See More
Anglebender replied to Anglebender's discussion 1.2.52 update = unresponsive drone?"Right. Guess I'll contact 3DR's tech support...?
"
Ronny Grimm replied to Duffy's discussion Gyro noise Arducopter APM 2.5 arducopter 2.9.1b"Same problem... Subscribed"
Assistant AdminJoshua Johnson commented on Joshua Johnson's blog post DIY Drones at 39,000 Members!
"@Jesse, Yeah thats why I put those statistics up. I am a longtime user of Chrome and was almost certain that Firefox or IE would've been the #1 used browser. For the 40,000 Member blog I'm going to go "All…"
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Forum
robust estimator of the direction cosine matrix
Started by William Premerlani in UAV Dev Board. Last reply by William Premerlani 5 minutes ago. 256 Replies 0 Likes
Is there a limit for DO_DIGICAM_CONTROL commands?
Started by Oliver G. in ArduPlane 2.x software. Last reply by Oliver G. 11 minutes ago. 14 Replies 0 Likes
APM Copter 2.9.1.b has been released
Started by Craig Elder in ArduCopter 2.x (multicopter). Last reply by Yannick 18 minutes ago. 776 Replies 9 Likes
Developing a horizontal aligned flight system
Started by Frank Bernd in ArduCopter 2.x (multicopter). Last reply by Frank Bernd 22 minutes ago. 1 Reply 0 Likes
Pressure sensor
Started by Kim Skatun in ArduPilotMega 2.x hardware 23 minutes ago. 0 Replies 0 Likes
esc:telemetry via apm 2.5
Started by Daniel M. in ArduCopter 2.x (multicopter). Last reply by Olivier ADLER 27 minutes ago. 1 Reply 0 Likes
Is my APM 2.5 bricked?
Started by Anglebender in ArduPilot Mega hardware: tech support 38 minutes ago. 0 Replies 0 Likes
Gyro noise Arducopter APM 2.5 arducopter 2.9.1b
Started by Duffy in ArduCopter 2.x (multicopter). Last reply by Duffy 1 hour ago. 3 Replies 0 Likes
Trouble connecting APM2 to Virtualbox
Started by Christopher Cooper in ArduPilotMega 2.x hardware. Last reply by MV Reddy 1 hour ago. 7 Replies 0 Likes
Quadrotor DIY Flight Controller (dsPIC) Problems
Started by Gate Crasher in My Project 1 hour ago. 0 Replies 0 Likes
1.2.52 update = unresponsive drone?
Started by Anglebender in APM Mission Planner. Last reply by Anglebender 1 hour ago. 5 Replies 0 Likes
APM2.5 5V/Vcc Schematic
Started by R. D. Starwalt in ArduPilotMega 2.x hardware. Last reply by Derek Vignard 1 hour ago. 64 Replies 4 Likes
Gimbal for pics at nadir
Started by peter christian in Aerial photography. Last reply by Oliver Volkmann 2 hours ago. 3 Replies 0 Likes
ArduPlane 2.73 released
Started by Andrew Tridgell in ArduPlane 2.x software. Last reply by b nevins 2 hours ago. 79 Replies 12 Likes
I'll Introduce myself - QAV400 Pilot With a Question!
Started by Ryan Randels in ArduCopter 2.x (multicopter). Last reply by Dimitri 2 hours ago. 9 Replies 0 Likes
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Welcome to DIY Drones!
This is the home for everything about amateur Unmanned Aerial Vehicles (UAVs). Use the tabs and drop-down menus above to navigate the site. (About us/Site rules)
This community created the Arduino-based ArduPilot, the world's first universal autopilot (planes, multicopters of all sorts and ground rovers). The APM 2.5 autopilot hardware runs a variety of powerful free UAV software systems, including:
- ArduPlane, a pro-level UAV system for planes of all types.
- ArduCopter, a fully-autonomous multicopter and heli UAV system.
I'm new to all this--where do I start? Are amateur UAVs legal? (yes)
Examples of civilian uses of drones Glossary of confusing terms
Blog Posts
Flight of a "Cyclocopter"
Posted by Chris Anderson on May 22, 2013 at 7:40pm 8 Comments 2 Likes
Every year or so, some research group posts a video of a "cyclocopter" flying. I'm not sure why (this article suggest they might be more efficient than traditional helicopters, and that people have been pursing them for a…
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Thirty Days (#16): More maker Faire
Posted by Joshua Ott on May 22, 2013 at 5:46pm 3 Comments 1 Like
DIY Drones at 39,000 Members!
Posted by Joshua Johnson on May 22, 2013 at 5:00pm 5 Comments 4 Likes
As is customary and traditional, we celebrate every new 1,000 members here and share the traffic stats. This time it's 39,000!
There were 2 million page views in the last month! (we get around 65,000 pageviews a day on average). It took us just 24 days to get this latest 1,000 members--we're…
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1.2 Ghz FPV with 2.4Ghz control- Weekly Video #6
Posted by Jake Wells on May 22, 2013 at 2:35pm 4 Comments 3 Likes
Last week(week 5) I tested out a new FPV system using 1.2 GHZ. It works great. The only problem I had was that it was locking out my 2.4GHZ control. So for the video I used my old 72mhz radio. Let's just call it glitch. It glitched me right into a patch of stinging nettles. So I ordered a low pass filter from Readymaderc.com. Then I commenced to building yet…
6 Modes on a Futaba T9CAP
Posted by Bryan Cherry on May 22, 2013 at 1:00pm 3 Comments 3 Likes
Here is how I got 6 modes out of my T9CAP 
Under AUX CH set CH 5 to Sw C
End points I set ch 5:GEAR to +/- 120%
Under Mix 1 Mix 2 Mix 3
MAS>…
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VR Copter X6+ VR Direct Drive Gimbal is coming ... the first fly ...
Posted by Roberto Navoni on May 22, 2013 at 3:25am 1 Comment 2 Likes
Dear Friends,
our Flight Teams beta tester star to test a VR Copter Fly Cam configuration. This is the hexa copter used by our beta tester for doing this video :
…
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Hex demostrated in San Francisco
Posted by Hex Air Robot on May 22, 2013 at 1:30am 3 Comments 5 Likes
At HAXLR8R’s demo day, ten hot hardware startups presented their products after completing a 15-week accelerator program in Shenzhen China. The program is designed to help entrepreneurs with innovative hardware concepts and prototypes and help turn them into commercial realities.
Yes! Hex is one of them! Here are some…
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Data Bus mbed baseboards: Tindie Fundraiser
Posted by Bot Thoughts on May 21, 2013 at 2:30pm 0 Comments 4 Likes
Data Bus mbed baseboards are now available on Tindie as a fundraiser! I figured maybe some folks wanted to experiment with their own algorithms and want a head start on their 2014 AVC ground vehicle entry.…
ContinueThirty Days (#15): Maker Faire Bay Area 2013
Posted by Joshua Ott on May 21, 2013 at 1:00pm 0 Comments 9 Likes
The Ardupilot controlled transducer boat part 2
Posted by Burkhard rieck on May 21, 2013 at 12:00pm 8 Comments 6 Likes
As I already mentioned on the first page, mygoal was to construct a boat that could drive for at least 4 hours without charging while I could catch some fish :-). To reach that goal, my boat should weigh around 4 kg and the capacity of the batteries should be quite high. After a lot of searching in the internet, I…
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Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.A list of all T3 contests is here.
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UAV news from sUAS News
First flight for Triton
The Northrop Grumman-built Triton unmanned aircraft system completed its first flight May 22 from our facility in Palmdale, Calif. The flight, which was about 1.5 hours successfully demonstrated control systems that allow Triton to operate autonomously. Triton is specially designed to fly surveillance missions up to 24 hours at altitudes of more than 10 miles, allowing coverage out to 2,000 nautical miles. The system’s advanced suite of sensors can detect and automatically classify different types of ships. Bookmark It Hide Sites
Parrot AR.Drone 2.0, ‘Built for the elements’ The movie
‘Built for the elements’ is a non-standard movie filmed in slow motion – 1,200 frames per second – with a high speed Phantom Flex camera. A true technical challenge, it offers stunning images that feature the robustness and the power of the Parrot AR.Drone 2.0, definitely a one-of-a-kind quadricopter! The film will premiere May 22 on www.youtube.com/ardrone. The machine faced with the elements Lighting in chiaroscuro, a black set whose boundaries aren’t visible… The scenery is arranged. The singular shapes of the Parrot AR.Drone 2.0 appear in a halo of light… Its engines pushed to their maximum, the quadricopter throws itself in a mad dash during which it has to brave the elements rising up in front of it, like water or fire… The extreme slow-motion enabled by the high speed Phantom Flex camera reveal the magical and fascinating spectacle of the sturdiness of the machine, faced with the elements: the flames sucked up by the rotational motion of the propellers; droplets exploding on its blades… The soundtrack, an astonishing metal rock version of Beethoven’s Ode to Joy, highlights the beauty of the images and the power of the flying machine. Freeze frame To make such precise images, Parrot used, for the [...]
Russia to test drones to monitor wildlife and track poachers
VLADIVOSTOK, Russia, Officials say they’ll test unmanned aerial vehicles at a nature reserve on Russia’s Pacific coast this summer to monitor wildlife and crack down on poachers. “UAVs are silent and can fly at a very low altitude to produce high-resolution imagery and detect poachers, their boats and vehicles,” Alexandra Filatkina, deputy director for development at the Kronotsky nature reserve on the Kamchatka Peninsula, told RIA Novosti Friday. Images from the drones will not only spot trails left by poachers’ vehicles but can also spot illegal logging sites and waste dumps, she said. Officials said the drones will greatly reduce the cost of aerial monitoring animals like brown bears, reindeer and snow sheep. Last year, the South Kamchatka Federal Reserve spent more than $32,000 on monitoring brown bears alone, officials said. The drones, which weigh about 5 pounds and have a range of 40 miles, will be equipped with inexpensive cameras capable of taking a photograph every two seconds, Filatkina said. The test at Kronosky will determine whether they can be used in other wildlife sanctuaries across Russia, she said. http://www.upi.com/Science_News/2013/05/17/Russia-to-test-drones-to-monitor-wildlife-and-track-poachers/UPI-44531368820052/ Bookmark It Hide Sites
DreamHammer Announces First Commercially Available Software that can control any Drone or Robot
SANTA MONICA, Calif – DreamHammer announced the beta launch of its drone control software. Called Ballista®, the software is an intelligent control platform that for the first time integrates unrelated unmanned drones and robots from different manufacturers into one system. Ballista is poised to become the industry standard for drone and robot control software for the multi-billion dollar global unmanned systems industry. “Ballista® is designed to the highest military and safety critical standards but goes beyond military applications to work with all unmanned drones and robots. It is commercial off-the-shelf software, when applied to different industries — for example,transportation, logistics, agriculture, law enforcement, etc. — can be used to link multiple drones into one master system, all controlled by one person,” said Nelson Paez, CEO of DreamHammer. “A drone could be as simple as a farm tractor or as complicated as an autonomous unmanned aerial vehicle or a satellite. It can be anything with a computer interface that is leveraging intelligence, technology and diversified control. ”DreamHammer, which had revenues of $6 million in 2012, has been licensing thesoftware and providing support to defense, intelligence, and homeland securitycustomers as well as their industrial base of manufacturers and integrators inadvance of the general [...]
Rocky Mountain AUVSI “Unmanned Aerial Systems – 2013 Annual Symposium”
Date: May 30th, 2013 Proposed Agenda (subject to change) 7:30 – 8:30: Registration 8:30 – 8:45: Opening Remarks 8:45 – 9:30: Keynote Speaker 9:30 – 10:30: Break/Expo 10:30 – 11:15: Presentation 11:15 – 12:00p: Presentation 12:00 – 1:30: Lunch/Expo 1:30 – 5:00 Presentation 5:00 – 7:00: Networking/Expo Where: Wings Over The Rockies Air & Space Museum 7711 East Academy Boulevard Denver, CO 80230 Register now for the Rocky Mountain AUVSI 2013 Annual Symposium. Join us and do some networking! Includes Lunch! There are a limited amount registrations available so please sign up ASAP. Please follow the link below (pay via PayPal). Admission: $65- AUVSI Member $95 – Non-Member $145 – Non-Member (includes AUVSI Membership) Sponsorships: $2,000 – Platinum Corporate (Includes short presentation, primary venue sponsor, name on main banner and advertising. Includes 3 emplyee registrations.) $1,000 – Diamond Corporate (Sponsorships available for: 1) Registration (Lanyards) 2) Beverages (coffee, juice, water) all day. 3) Lunch 4) Networking event. All the above includes a booth 2 emplyee registrations and printed advertisement recognition.) $395 – Gold Exhibitor Participant (Includes 2 emplyee admissions, booths space and attendace to all daily activities) http://www.auvsi.org/Rocky_Mountain_Chapter_of_AUVSI/Home/ Bookmark It Hide Sites
UAV news from Flight Global
Maritime Heron UAV supports European airspace trial
Europe has advanced a project to prove the feasibility of using satellite communications to enable UAS operations in non-segregated airspace ...Brazilian navy begins UAS evaluation
The Brazilian navy has begun to evaluate two Israeli-made unmanned air systems for maritime surveillance missions ...Indian air force to launch micro UAS evaluation
The Indian air force is to evaluate several micro unmanned air systems from around 10 companies in early May ...VIDEO: Eurocopter demonstrates unmanned EC145
Eurocopter has unveiled an optionally piloted vehicle (OPV), based on its EC145 light twin, which has been in development since September 2011.Israeli F-16 downs another Hezbollah UAV
An Israeli air force Lockheed Martin F-16 has shot down an unmanned air vehicle launched from Lebanon by Hezbollah militants ...
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