Joel
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Joel's Discussions

[SOLD] FOR SALE:: APM 2 Purple Board [SOLD]

Started this discussion. Last reply by Nathan Reim May 20, 2012. 14 Replies

[SOLD] Never flown, only desk-tested APM2 purple board for sale. Mint condition, I have desk tested it with the Mission Planner software(tested TX setup and different modes using 2 servos[elevons])…Continue

[solved]No output on APM 2 purple board.

Started this discussion. Last reply by Joel Mar 12, 2012. 2 Replies

I have tried everything and I can't get my servos to do anything. I just got the board a couple weeks ago and hadn't had a chance to mess with it until now. The servos work fine when plugged directly…Continue

HD video and camera control zoom remotely?

Started this discussion. Last reply by Roger Powers Apr 13, 2012. 22 Replies

Does anyone know of any good quality small cameras that will output SD video while recording HD video(Like the gopro).... I would like to set up stabilize and PTZ(I believe APM and APM 2.0 can…Continue

Tags: gopro, small camera, ptz, stabilize, zoom

FLB?

Started this discussion. Last reply by Randy May 30, 2011. 1 Reply

For those of you already using the Ardu-pilot Traditional Helicopter, I have a few questions. 1. Can it be used with a flybarless Helicopter?2. If so, does it compare to the other FBL control systems…Continue

 

Joel's Page

Latest Activity

Steve Monro replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
"Richard, this is the best advice I have seen anywhere so far regarding the type batteries and what to buy - in simple English, for these devices. I'm new to this too, and have just bought the same kit…"
May 10
Brenden replied to Joel's discussion ublox or mediatek?
"I Now STRONGLY DISAGREE with my own earlier strong disagreement...huh?!?!  In other words I think I finally discovered the problem and I WAS WRONG!!!! Although I still believe the UBLOX to be a superior GPS unit (no one is questioning that…"
Apr 15
Toby Mills commented on Joel's blog post Theoretical limit of solar cell effeciency probably broken
"the ultimate will be to combine this technology with the recently posted graphene super capacitors but to actually construct the airframe itself from a combination of solar cell and graphene (rather than sticking them on afterwards). This should…"
Mar 25

Wiki Ninja
Gary McCray commented on Joel's blog post Theoretical limit of solar cell effeciency probably broken
"Really inexpensive high capacity solar cells will change everything. Unfortunately look at how we have treated them. Chinese Solar cells were getting really cheap, so, ostensibly our government came down on China for dumping them and imposed a big…"
Mar 25

Developer
John Arne Birkeland commented on Joel's blog post Theoretical limit of solar cell effeciency probably broken
"Great! This is the kind of stuff that might not seem that important at first, but could very well end up changing the world as we know it."
Mar 25
Rana commented on Joel's blog post Theoretical limit of solar cell effeciency probably broken
"That's really great ! would certainly lead to solar power UAV's with with much smaller wing area as compared to what is being used now a days. It will bring revolution !"
Mar 25
Joel posted a blog post

Theoretical limit of solar cell effeciency probably broken

"A simple, single nanowire crystal is capable of super-concentrating the intensity of the sunlight that it is exposed to up to a factor of 15, researchers from the Niels Bohr Institute have discovered. The surprising discovery means that the assumed limit to solar cell efficiency, the “Shockley-Queisser Limit,” can likely…See More
Mar 25
Joel replied to anubhav prabakar's discussion obstacle avoidance programing using 6 maxbotix (XL-max sonar - EZ/AE) range finders (arducopter) in the group Learning to program the Ardupilot Mega
"I would love to get this working. That said, I would really love to get it working using video. Maybe OpenCV? But, I am sure Sonar would work just fine, I'm just personally interested in computer vision and analyzing live video on the fly."
Mar 14
Joel replied to ALK's discussion UAV camera control question
"I would like to use my joystick for camera control(but only camera control). I was also wondering, my Cannon 60D can be controlled by computer using usb with the included EOS software. How would one go about controlling things like zoom, or other…"
Mar 14
Joel replied to Bernardo's discussion no GPS fix after update ????????????? in the group ArduCopter User Group
"Plug in your GPS ;)"
Mar 12
Richard Boyhan replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
"You probably can lift 3kg. But more importantly is how long can you fly? My hex weighs in @2kg and with 3S 5000mAh battery I can fly 11 minutes. Double the battery and I get @ 16 minutes of flight. I have crashed and rebuilt my hex 3 times. Not…"
Mar 6
António Cabral replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
"For such a heavy camera you should ger the 880kv motors with the 11" for better performance. I have that same mean machine with standard motors 850km and 10" and I'm loving it. I've bought it RTF but I've learned so much…"
Mar 6
Joel replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
Mar 6
Joel replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
"I haven't ordered a camera support yet(researching). I just wonder what lifting capability this one has http://store.diydrones.com/category_s/28.htm "
Mar 6
António Cabral replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
"If you bought the >$150 camera support from them, you'll be very disapointed. In hobbyking you'll find much better for $15. And your Canon 60D wont fit there for sure."
Mar 6
Joel replied to Joel's discussion Payload for 3DR ArduCopter Hexa-B Frame + Motors + Full Flight Electronics Kit in the group ArduCopter User Group
Mar 6

Profile Information

About Me:
Prior military. Enjoy RC.
Tell us a bit about your UAV interest
Aerial photography and FPV.
Hometown:
Parkersburg, wv

Joel's Blog

Theoretical limit of solar cell effeciency probably broken

Posted on March 25, 2013 at 3:30am 4 Comments



"A simple, single nanowire crystal is capable of super-concentrating the intensity of the sunlight that it is exposed to up to a factor of 15, researchers from the Niels Bohr Institute have discovered. The surprising discovery means that the assumed limit to solar cell efficiency, the…

Continue

Dutch engineer is the first man in history to fly like a bird with self- built wings

Posted on March 20, 2012 at 5:00pm 78 Comments



The Hague, Netherlands, 20th March 2012

PRESS RELEASE

Dutch engineer is the first man in history to fly…

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Elbit Systems Successfully Completes Skylark I-LE UAS Test Flight Using Horizon Fuel Cell

Posted on December 7, 2010 at 8:00am 2 Comments

Elbit Systems Successfully Completes Skylark(r) I-LE UAS Test Flight with Horizon's New AEROPAK Fuel Cell Power System Skylark(r) I-LE is one of less than a handful of UAS to perform a fully operational test flight using the AEROPAK fuel cell, including an operational payload, take-off and recovery



Singapore, December 7, 2010 -Horizon Energy Systems announced the successful test flight of its AEROPAK fuel cell power system onboard Elbit Systems Skylark(r) I-LE UAS (Unmanned Aircraft… Continue

H-Cell 2.0 Hydrogyn fuel cell hybrid power-train for RC models

Posted on September 20, 2010 at 2:35pm 25 Comments

This might interest some of you.







A hydrogen fuel cell hybrid power-train for 1/10 scale model hobby RC. The H-Cell 2.0 can be connected to almost any RC platform and will provide continuous power to recharge the on-board batteries. Using this hybrid system it is possible to increase the run time of RC vehicles by more than four times!



When the solar panel option is…

Continue

Comment Wall (2 comments)

At 6:32pm on November 17, 2010, Johann Van Niekerk said…
Hey buddy ya it's cool bambam880125. But I am going to say cheers for now as it's like 1.30am here . We will chat tomorrow .thanx I'll look at zippy fuck I'm still in shock . Anyway chat tommorow mate
At 11:08pm on April 7, 2012, David said…

Joel... I don't know why you are ignoring my email.... You were supposed to send the USB device over a week ago... I have not been able to test the APM2.0 without it and have not received a comment back from you.... PLEASE SEND IT RIGHT AWAY....  Thanks.

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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.

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