"Huh... this is kinda neat but... turns out they were actually arrested shortly after this was filmed. I guess they were let go afterwards.
"
Developer
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R_Lefebvre
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R_Lefebvre's Groups
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Andropilot Users Group
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Parlons français...
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Canada
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R_Lefebvre's Discussions
Trouble with Video Signal After Electonics Hacking
Started this discussion. Last reply by Chris Khosravi Apr 25. 6 Replies 0 Likes
I've been working on building a nice ground control station including a Tx, and a video monitor, into a Pelican case. So far it's gone well, but last night I tried to get the video working. I've…Continue
All Aluminum Welded MultiRotor Frame. Use Frame As Ground?
Started this discussion. Last reply by Dwgsparky Mar 5. 5 Replies 0 Likes
I'm currently dreaming up a super simple, square aluminum tube, welded H-Octo airframe. Since it's made of aluminum, and welded, the electric path should be pretty good.Any electronic gurus have any…Continue
Arducopter 2.9.1 For Helicopters (Warning)
Started Feb 2 0 Replies 0 Likes
Starting a new thread for this, because I have an important warning for users.2.9.1 fixes an important bug for helis and quads, it prevents an uncommanded RTL. However, there's a risk you need to…Continue
Helicopter Avionics Power Supply
Started this discussion. Last reply by Jim Johnston May 1. 72 Replies 0 Likes
I wanted to open up a discussion about how we are powering our avionics, meaning servos and APM, on helicopters as they present a unique challenge in the APM world, and must be treated carefully.…Continue
R_Lefebvre's Page
Latest Activity
DeveloperR_Lefebvre commented on Joshua Ott's blog post Thirty Days (#13): Y6 in-flight motor failure tests
"Jared, anecdotal evidence from others confirms your theory.
Joshua: This is really good flight performance with Y6. Nice work guys. I'm curious to see a test of two things:
Performance with payload.
Performance of a…"
DeveloperR_Lefebvre replied to Roy Brewer's discussion Accelerometer question for IMU Experts
"What are you trying to do?
The DCM already corrects for gyro drift using the accelerometers. That's the sole reason for it's existence."
DeveloperR_Lefebvre commented on Scott Berfield's blog post Google Investing in Drone Tech
"Austin, no, not exactly eh?
And gee, those even make the DJI Ace One look expensive!
I wonder how long DJI is going to continue with the silly pricing scheme on their helicopter systems?"
DeveloperR_Lefebvre replied to Randy's discussion AC 2.9.1 vs 2.8.1 GPS accuracy
"Now, hold on a second....
I don't know the timing of exactly who did what and when, but, the MB1200 *was* the recommended sensor for quite some time, as was the MB1260. I bought two MB1260's and an MB1200 with my own money.
They…"
DeveloperR_Lefebvre replied to Randy's discussion AC 2.9.1 vs 2.8.1 GPS accuracy
"Haha, somebody had to say it! :)
Seriously though, people must remember that quads can be used for more than just hovering. And I don't even hold the speed record. I think it's DaveC. He had one doing some ungodly speed…"
DeveloperR_Lefebvre commented on Thomas J Coyle III's blog post DJI Innovations | Aerial Video Competition
"John, yeah... although I've seen worse. Some of these have you actually sign over the Copyright so you don't even own it anymore! This appears to simply allow them to use it, while you still own the copyright.But for sure…"
DeveloperR_Lefebvre replied to Randy's discussion AC 2.9.1 vs 2.8.1 GPS accuracy
"Chris, mine are rarely going slower than 10 m/s.
It's all relative. ;)"
DeveloperR_Lefebvre commented on Jared Reabow's blog post DroidPlanner for Android The best missionplanner alternative! Using Mavlink via cheap usb adapter (Follow me - PIDS - ACC calibration - FREE)
"What kind of laptop do you have? Mine's a hotrod, and I still get about 2 hours out of it. That's sort of the low end as I understand it. Typical laptops are more like 4 hours now."
DeveloperR_Lefebvre commented on Thomas J Coyle III's blog post DJI Innovations | Aerial Video Competition
"Joshua, not sure if it makes you feel better or worse, but DJI's competition has been going on for 1-2 weeks at least, already. ;)"
DeveloperR_Lefebvre commented on Jan's blog post Prototype testing
"Do I read that right that these frames cost $5-800, just for the frame with not electronics or motors?"
DeveloperR_Lefebvre commented on Jan's blog post Prototype testing
"Wow, that's a nice looking frame."
DeveloperR_Lefebvre commented on John C.'s blog post Big Product News
"Interesting... especially those landing gear. I bet those could be used to to convert the 3DR Quad into an X8..."
DeveloperR_Lefebvre replied to Joly's discussion Arducopter - Trad Heli development
"I'm quite happy with the way I have 2.9.1 running at the moment. And the rate control stuff is just a diversion. I really should be spending more time getting an actual camera up in the air...
If it wasn't for AVC, I'd be…"
DeveloperR_Lefebvre commented on CrashingDutchman's blog post Q Brain 4 x 20A Brushless Quadcopter ESC
"Gary, Hobbywing starte with a 20A, and continues to make the 20A. The 25 Amp is relatively new, and not many people even carry them."
DeveloperR_Lefebvre replied to Chandan Roy's discussion Can someone please make me understand a part in the code
"IIRC, "AN" are Arduino Analog Input pin numbers, and the number beside them (ie: AN8 62), the 62 is the actual AVR pin number. I'm a bit rusty, but something like that."
Profile Information
- About Me:
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- HK600GT
Aerial Photography
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R_Lefebvre's Blog
Royal Canadian Mounted Police use UAV and FLIR to locate lost man.
Posted on May 9, 2013 at 6:51pm 9 Comments 7 Likes
ContinueMounties in Saskatchewan are crediting a high-tech drone for the rescue of a man who had walked away from his vehicle after a rollover crash and could not be found.
Sgt. Doug Green, who deployed the drone in the search, told CBC News the machine was built and designed by a Saskatoon company, Draganfly…
Arducopter TradHeli Development: Full Auto Landing
Posted on April 21, 2013 at 1:39pm 13 Comments 4 Likes
I have been working on improving the TradHeli slowly but surely over the past few months. One major aspect I've been working on is the ability to use full Pitch and Roll I-term. Currently in 2.9.1 these are "Leaky" which limits their build-up to avoid tip-overs on the ground. I have created a robust Take-off detection scheme that allows us to switch over…
ContinuePotentially The Ultimate Compact GCS
Posted on March 22, 2013 at 6:00am 119 Comments 6 Likes
I just ran across this this morning on Engadget, Wired online. It immediately struck me as almost a "holy grail" of tablets to use for a ground control station. It has plenty of buttons, and 2 joysticks. We already have the excellent…
ContinueShhhh.... be vewy quiet, we're hunting Dwones!
Posted on February 23, 2013 at 2:30pm 33 Comments 1 Like
I stumbled upon this... um... interesting video on Youtube. Amazingly over 500,000 people have already watched it. I think for the most part it's just some guys having fun with guns. But it's another interesting insight into the growing fearmongering about domestic drones.
The statement that "The first person to shoot down a drone will be folk hero"…
ContinueComment Wall (6 comments)
- At 5:59pm on November 30, 2011,
Developerjasonshort said… Chris is the Admin. He can help you.
Jason
- At 8:22pm on May 16, 2012,
Carl La France said… Robert thanks for your input the 1/8 aluminum on on the fuselage will be a milled out channel running half way down the side of the plane to attach the wing the horizontal stabilizer and the vertical fin to a Exoskeleton about 1 1/2 pounds the rest of the plane is foam and fiber glass there was no distortion welding we had it clamped down pretty good Thanks again Carl
- At 4:26am on July 26, 2012,
OG said… Thanks for you assistance with my ecommerce sight yesterday . I appreciate it so much I give you my cost your first porches.
- At 6:17pm on November 27, 2012,
Dwgsparky said… Hi Robert, sorry I missed your request. still getting used. to this system.
Sorry, not waterslides,,,, Kiddie trains from Granby.
- At 7:53pm on January 24, 2013,
Assistant AdminJoshua Johnson said… My bad I was just trying to give new members someone they can ask questions to because the site is super confusing at first for a while when your new. Ill stop doing it!
- At 11:47pm on April 23, 2013, Manuel Zangenfeind said…
Dear Mr. Lefebvre,
I saw some videos from your heli in Loiter Mode and thought wow this heli is standing rigid in the air.
I'm using a TREX 700E and want to fly this heli with apm 2.5 version 2.91 autonomously.
Currently I want to adjust the PID parameter. The stabilize and the Altitude Hold Mode is working perfect, but I have some problems with the Loiter values.
So would it be possible to send me your PID values of the loiter mode? I think they have to be very similar.
Thanks.
Nice Greets from Austria
Manuel
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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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