July 2011 Blog Posts (122)

Project Andromeda - New airframe and autopilot

Over the last few months we have been testing our new hardware, launcher, airframe and autopilot.  As the newest member of the team I've been taking responsibility for producing some new videos - the acquisition of a GoPro HD has resulted in some amazing footage.  Such great video from such a small device!


This video shows a short flight of our…


Added by Shaw Innes on July 27, 2011 at 2:00pm — 5 Comments

Ultra Lightweight UAV


A short video of a very small UAV plane flying in an autonomous mode.   Looks similar to some perching UAVs that I stumbled across a while back.



Added by GBASK on July 27, 2011 at 11:54am — 4 Comments

3D Robotics
Adding acrobatic scripting to APM

For the next version of APM (the fixed-wing codebase), we're thinking about adding an acrobatic scripting language, so you can program your UAV to do awesome robotic stunts. APM already suppports inverted flight, and adding other maneuvers is technically easy once we decide on how…


Added by Chris Anderson on July 27, 2011 at 7:58am — 49 Comments

3D Robotics
ScoutUAV: an APM-powered quadcopter with a GREAT buildlog

Hack-a-day has a good write-up of ScoutUAV, a custom-built quadcopter using the APM hardware and ArduPirates code. It really is a terrific site and introduction to building an APM-powered quad:


DIY-er [Russell] wanted a quadcopter, and like many people out there, he knew the satisfaction that would come from building it himself. Rather than purchase…


Added by Chris Anderson on July 27, 2011 at 7:38am — 4 Comments

POWERFULL Little Y6 (90 degree arms) with 3000 mAh LIPO !!!


Today i 've tried my little Y6 (90 degree arm) with an 3000 maH Lipo !! here is the result !! really Powerfull !!

I attach the battery at the front of the Y6 ! the stability seems to be really nice like that. The centre of gravity is close to the front and it may be help ??

I have more than 15 mn flight… Continue

Added by patrice.rance on July 27, 2011 at 6:35am — 14 Comments


I just discovered a nice online service where you can share your circuit design. Eagle and Kicad files are accepted. From the Website:


CircuitBee provides a platform for you to share live versions of your circuit schematics on your websites, blogs or forums.

Features include full zooming capability, panning, and even mouse over tips about symbols in the schematic.

It sure beats a blurry screenshot or a giant PDF!

Sign-up and get your circuit…


Added by Simon Wunderlin on July 27, 2011 at 12:03am — 1 Comment

3D Robotics
"Cyclonic" quadcopter strangest yet


From IEEE Spectrum,a "cyclogyro", or "cyclocopter":


Fundamentally, a cyclocopter is similar to a helicopter in that it creates…


Added by Chris Anderson on July 25, 2011 at 5:05pm — 9 Comments

3D Robotics
Tutorial series for new Arduino PID library

Almost all autopilots use PID algorythms in one way or another. Now there's a basic PID library in the standard Arduino software. Even better, here's a tutorial series from Brett Beuregard on how to use it!




Added by Chris Anderson on July 25, 2011 at 4:01pm — 7 Comments

3D Robotics
6DoF IMU for LEGO Mindstorms

I got my start in robotics with LEGO Mindstorms, so I'm glad to see continued sensor development there. Here's the latest: a 6DoF IMU from Dexter Industries. No word yet on what kind of software support it will have for sensor…


Added by Chris Anderson on July 25, 2011 at 4:00pm — 2 Comments

er9x TX with Ardupilot interface

Well the er9x TX and ardupilot combo is finished !
I use an Ardupilot and display it on the TX LCD on 10 screens (all backlight)

No external things hanging out !

All internal in the 9x.

Plus I have an autopilot with GPS, waypoints, stabilization, auto mode, takeoff/landing, and more to come.

Pic 1 is…

Added by Earl on July 24, 2011 at 3:16pm — 12 Comments

Engineering analysis of RC helicopter control

I recently wrote my thesis on the topic of using feedback control to provide a vertical position autopilot for an RC helicopter. I used a Gaui EP100 on a test-rig to test the control techniques. The control theory has been designed so that it can be applied to a helicopter of any dimension/number of blades. It is presented in this 26 page document. I hope this can be of…


Added by David Browne on July 24, 2011 at 9:47am — 6 Comments

VR Dragon Hexa Coax Heavy lift , Payload Test

Dear Friends,

in this video you can see my last Payload Test on this Heavy Lift Hexa Coax configuration.


The VR Dragon build list :

Multipilot32 : http://www.virtualrobotix.com/page/multipilot32-1

VRIMU FULL : http://www.virtualrobotix.com/pages/vr-imu-10

ESC Motorius 50 Amp :…


Added by Roberto Navoni on July 24, 2011 at 1:21am — 1 Comment

Camera Mount Stabilization with MultinoCopter


Hi Guys,


I'm working on the MultinoCopter project since 2 months. It is a 50x50mm size board with full compatible arduino pro mini architecture and 9DOF imu. I didnt share it because i have to finish the multicopter code before. Now it is working as a serial IMU for the computer based projects (calculating euler angles) and camera stabilizer. 

Yesterday i tested the camera stabilization code on the 3 axis. The mount coming from a…


Added by Melih Karakelle on July 24, 2011 at 12:00am — 11 Comments

Maxim Acquires SensorDynamics

Do you know that chip  which goes on Arduino USB Host Shield and ADK boards? Yes, that's Max3421 from Maxim. And that other one which integrate some text based OSD boards? Hmmm... OK it is the Max7456 from Maxim too.

Well, from now on, Maxim will be there on our buddy gyros too.


Maxim Integrated Products acquired SensorDynamics a Leading Specialist…


Added by Sandro Benigno on July 23, 2011 at 7:01pm — No Comments

"El cuadricóptero" Project

Finally, I'm posting this project to share.


This is my Quadcopter, a project born because of a passion hobby and a thesis research excuse. :P



4 Outrunner Motors KD36-10XL of 810 [kv] and 24 [A] max.

4 ESC Turnigy Sentry 60 [A]

2 LiPoly Batt. Rhino 2250 [mAh]

4 Blades APC 12x3.8

1 Pair of…


Added by ToÑo on July 23, 2011 at 4:28pm — 12 Comments

Flight Mode Switching on a Futaba 9ZAP/ZHP

Hi All

This was a real head scratcher for me, so hopefully this will help others. I have had this radio for 4 years now but never used it as it was so complicated. I decided to RTFM which honestly just confused me the futaba manuals have never been to my liking. I read manuals for a living and compared to some of the rubbish ones this is definitely worse.

I tried all of the other methods listed for Futaba and couldn’t get them to work mostly because there is no "Switch…


Added by Alastair Seggie on July 23, 2011 at 2:00pm — 4 Comments

DIY/ Engineering Excitement over the past few months!

When I first got interested in UAVs I took the advice of some of the forum members here and equipped myself with arduino based systems....but I'm a crazy engineer and this approach didn't last long before I had convinced myself I could make a better job of all this if I started from scratch...luckily I also managed to convince a friend of mine who specialises in…


Added by Henry Fletcher on July 23, 2011 at 1:00pm — 5 Comments

AutoQuad version 6.1

For those following this saga, version 6.1 of the AutoQuad board is complete and has passed initial testing.  I have taken the 5.0 design and added features that should make it more flexible and expandable while increasing performance.  Here is a summary of specifications:




- 2" x 2.5" main board with MK mounting hole…


Added by Bill Nesbitt on July 23, 2011 at 11:34am — 61 Comments

Microdrones 2.0 Blog

I have been blogging for some time on a tumblr blog called microdrones 2.0 .

Up until now I have been collecting articles and videos of advanced microdrones features.

Soon we will start to discuss what will be the next generation of microdrones, and what

features these next generation microdrones will include.

I opened this blog because for some time I feel that all the microdrone available…


Added by Itamar Weiss on July 23, 2011 at 8:27am — No Comments

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