All Blog Posts (13,105)


Developer
ACRO for ArduPilot 3.1

Hi all,

My motivation to get involved in the development team was to bring a good ACRO mode to ArduCopter. Three or four months ago Robert Lefebvre suggested that we could integrate the rate error and use it to correct the platform in the body frame. He went on to demonstrate this…

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Added by leonardthall on June 29, 2013 at 2:42am — 148 Comments

Carbon Fibre Brushless Gimbal for NEX and smaller.



I now have an RCTimer OpenSource BGC board ("Martinez") and a couple of LD-Power Gimbal Motors which are large enough for an NEX…

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Added by John Grouse on June 28, 2013 at 11:01pm — 36 Comments


3D Robotics
Drones used to spot, protect wildlife in farm fields

Not sure how widespread the problem of baby deer in farm fields is, but at least one team is trying IR-camera drones to spot them before farm machinery hurts them. 

FromBoingBoing (linked video is…

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Added by Chris Anderson on June 28, 2013 at 8:26pm — 4 Comments

North Texas Drone User Group to host a Drone Fly In - July 13th!

Ever wonder if anyone was going to let you cut loose with your drone?  Been looking for local drone types but just can't seem to find them?  The North Texas Drone Users Group (NTDUG) is a support and networking…

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Added by Chad Frazer on June 28, 2013 at 7:22pm — No Comments

ArduIMU V3 code is out of date -- team up to improve it?

Hi,

I've seen huge improvements in terms of sensor fusion algorithms implementations into the APM 2.5, but none of those changes have been made to the ArduIMU v3. As a result the arduIMU is EXTREMELY sensitive to vibration and drift. I have taken…

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Added by Daniel Nugent on June 28, 2013 at 7:00pm — 11 Comments

Cameraman caught flying drone around Mandela hospital

 A dozen police officers apprehended a man who flew a radio-controlled mini helicopter over the Pretoria hospital, where former president Nelson Mandela was being treated on Friday.

The multi-copter had a rotating camera and was in the sky for a few minutes. A multi-copter looks like a spider.…

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Added by Justin M on June 28, 2013 at 2:00pm — 8 Comments

Synopsis of findings, post 3.0.1 update & new mounts

Ok, so I eventually got one of my quads working on 3.0.1! Did the compassmot, and eventually started loitering correctly!Also did a vibe upgrade - double moongel corners for APM and the jdrone motor mounts (props were already balanced). The effect has been dramatic. Used to be +/- 5 on Acc z...now....this:…

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Added by Euan Ramsay on June 28, 2013 at 2:00pm — 4 Comments

CUAir Takes Home First at the 2013 AUVSI SUAS Competition

At the Association for Unmanned Vehicle Systems International (AUVSI) 11th annual Student Unmanned Air Systems (SUAS) Competition held at the Patuxent Naval Air Station, the Cornell University Unmanned Air Systems Team (CUAir) came in first place.

Team Lead Phillip Tischler said of the team’s win at the competition, “it was a great victory not just for the team members, but also for everyone involved - our sponsors, the Cornell community, and friends and…

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Added by CUAir on June 28, 2013 at 12:12pm — 3 Comments

CDAutoRover - updated with Turnigy9X

Updated pics:

I have cleaned up the placement of the electronics on the CDAutoRover and added my newly received Turnigy 9X.  Worked out the 6 flight mode settings.  I have something I am going to test for the temporary switch into Channel 7,  I am going to try out using the Rudder,…

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Added by Chuck Durham on June 28, 2013 at 11:30am — No Comments

Drones, 3-D Printing, and Our Distorted Views of New Technologies

I recently had a piece posted on Slate comparing society's reaction to 3D printing and drones. It is excerpted below.…

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Added by Timothy Reuter on June 28, 2013 at 10:16am — 2 Comments

APM Planner Automation

I have a developed a sensor network which detects gunshots for anti-poaching purposes. When a gunshot is detected, the event data is sent to a sensor server for further analysis and triangulation of the gunshot location. Currently the prototype is running on Arduino Due boards with Xbee coms but this will soon be changed to a less power consuming custom PC board with incorporated and more secure communications.

I wish to incorporate fixed wing UAV’s in this concept…

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Added by Petrus Botha on June 28, 2013 at 1:00am — 11 Comments

Early Flights of the MAXrotor

I posted this way down in the comments of my other recent post about the MAXboard, but I thought I'd share it here where more people would get a chance to see it. You'll notice that I refer to it as the "Bomb Squad Helicopter" in the video, that's because it was originally designed for them, but once I got it together I realized that maybe it was good enough to…

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Added by Michael Colton on June 27, 2013 at 9:39pm — 3 Comments

Possible critical error due to a design problem with the 3DR power module

 

I ran into the following post at RCGroups which describes a potentially critical error condition with the 3DR power module.

I cannot verify the claims but at least they appear well founded so I'll leave it to the tech guys to comment on that.

Post URL:…

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Added by Stefan Gofferje on June 27, 2013 at 1:30pm — 42 Comments

Kickstarter project - Ziphius: The Aquatic Drone

Back in March Chris Andersson posted about Team Ziphius, who won Engadget's Insert Coin innovation competition with their FPV mobile-controlled aquatic drone. Since June 24 there is a Kickstarter project for the Ziphius.

Ziphius is the first…

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Added by CrashingDutchman on June 27, 2013 at 6:06am — 5 Comments

New Generation Kinect Available for WIndows Soon

Not strictly Drone related, but if the weight and power requirements are manageable, the new Kinect sensor from Microsoft could be pretty amazing as a navigation/obstacle avoidance/3D mapping tool. And it can see in the dark and read your pulse rate.

From …

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Added by Scott Berfield on June 26, 2013 at 3:57pm — 7 Comments

Mechanical gyroscope gimbal: 2nd test (pitch / roll)

2nd test with the gimbal: 2 axis, pitch and roll stabilized by a homemade mechanical gyroscope. Using a GoPro

In this second test, I added another joint so it can move freely in 2 axis as seen in the beginning of the vídeo. The performance was nice although i performed some very aggressive movements.

PS: i didn't use any bearing in joints,…

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Added by Bernardo M. A. on June 26, 2013 at 3:00pm — 8 Comments

Flawless full Auto flight 2 KM over Dutch water incl. Auto takeoff and land

Apologies for partly jittery video due to unbalanced props and only 1 axis of the camera gimbal was working.



Custom frame Hexacopter (APM 2.5 and ArduCopter v2.9.1b) flying a pre-planned mission autonomously over water, with full auto mode from takeoff to landing. Flight was performed flawlessly! Kudos to…

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Added by Stefan78 on June 26, 2013 at 9:45am — 9 Comments

Quad video 3



Ok, video 3...the first with the gimbal! Alexmos + Tmotor 2208's + cheap gimbal from china. $230 all in cost.



The most noticable problem is the flutter in turbulence; I think the vibe suspension balls are too soft. Might need to find firmer balls, or even mount direct to the frame/legs.



There is also some motor-induced vibration occuring at > 45'… Continue

Added by Euan Ramsay on June 25, 2013 at 11:49pm — 17 Comments

Change between 6 modes with Turnigy 9XR using mixing.

First I acknowledge lianpinkoh's post, "Channel Mixing in Turnigy 9XR for Arducopter/Arduplane" as this was the post I started out with.  The method I explain below is only a Modified version of lianpinkoh's that is more taylored towards arduplane rather than arducopter and that does not require the servo cable to channel 7.

Below are the uses for the switches I am using:

This Mixing schedule (shown below) sets up the three switches shown above…

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Added by Mike Perillo on June 25, 2013 at 9:00pm — 19 Comments

EMC Shielding for ArduCopter3.0

The EMC shielding material reduce magnetic interference that is good to ArduCpoter3.0.

Measurement of magnetic interference becomes half by 60micron meter low-loss,high permeability nano-crystalline material.

Without magnetic shield…

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Added by Jiro Hattori on June 25, 2013 at 5:40am — 37 Comments

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