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James's Discussions

GPS Issues with shared power - Help!

Started this discussion. Last reply by Aqntbghd Oct 6, 2011. 9 Replies

Morning all. My flying buddy and I are trying to finish off our APM build, but are running into a very odd problem, and we are not sure what could be causing it. That is normally a good reason to ask…Continue

Parrot quad copter

Started this discussion. Last reply by James Oct 7, 2010. 2 Replies

I've just been sent the following link about the Parrot AR.Drone.…Continue

Airframe design - Payload design first, or fit payload to airframe design?

Started this discussion. Last reply by Hamish Nov 26, 2010. 12 Replies

Morning all!A long time lurker here finally breaking his silence, and choosing the topic that has been driving my crazy since I started thinking about building a UAV - Airframes.I have a decent idea…Continue


James's Page

Latest Activity

James commented on trappy's blog post Death Valley (TBS @ USA Road Trip Chapter 3)
"Excellent video! How come you didn't take the new plane out? Was it just the size, or is it still under development?"
Feb 16, 2012
James commented on Robert Krogh (hooks)'s blog post X8 flying wing
"Want one... Want one badly."
Dec 14, 2011
James commented on trappy's blog post FPV Media Coverage
"Dear gods, it's a beast!! However, the way you have the GoPro set up makes a lot of sense. When can we start expecting 3D output from TBS?   Love the motor noise too."
Dec 1, 2011
James commented on trappy's blog post FPV Media Coverage
"Nice coverage! One question: What was the twin motor wing you were working on in your cellar?"
Dec 1, 2011
James commented on Stephen Carlson's blog post My T3 Entry
"Looks good, and I'm impressed with the wing too! Do you mind if I attempt to build myself one at some point?"
Nov 25, 2011
James commented on Dany Thivierge's blog post CANADADRONES.COM is OPEN!
"Congratulations and good luck!"
Nov 24, 2011
James commented on IKE's blog post RC Avatar-like twin rotor heli from flite test
"It still looks cool though.   Face it, it would be fun to take out to the park on a still day."
Nov 15, 2011
James commented on trappy's blog post Slovenia FPV Vacation
"Beautiful footage! That national park looks like a wonderful place to fly.   When can we expect a visit to the UK?"
Nov 1, 2011
James posted a status
"These flying wings are pretty hard to fly. Maybe I should build something more stable..."
Oct 24, 2011
James commented on Chris Anderson's blog post Roundup/Review of all the EasyStar clones
"Just killed my AXN Floater. Alas, no amount of carbon fibre reinforcing, hot glue, epoxy and duct tape will get it back in the air after that last crash.  It is a good training airframe though, but I am not sure it would be the easiest plane to…"
Oct 12, 2011
James commented on Martint BuildYourOwnDrone.co.uk's blog post Drone Zone II Meeting Guildford UK
"I might be able to tempt a couple of people down for that! Confirmation (from my wife) to follow!"
Oct 7, 2011
Aqntbghd replied to James's discussion GPS Issues with shared power - Help!
"Another bit of information :    I've decoupled the RC Rail power from the APM, and powered it with a 2S lipo battery. It works fine then (red led and GPS fix). It also fixes my  stabilization problem (all channels went to 1500…"
Oct 6, 2011
Aqntbghd replied to James's discussion GPS Issues with shared power - Help!
"more infos :  USB connected : measured 5.5V on the GPS breakout board. USB disconnected : measured 5.2V on the GPS breakout board.   3.3V shows 3.15 al the time with or without USB power...."
Oct 6, 2011
Aqntbghd replied to James's discussion GPS Issues with shared power - Help!
"False alert : problem is not sorted out !!!! :)   Here's a quick update on the tests and the findings :  USB connected, APM powered via RC rail by 4AA batteries, no ESC attached : GPS blinking blue, LED B steady and C blinking…"
Oct 6, 2011
Aqntbghd replied to James's discussion GPS Issues with shared power - Help!
"Apparently we've sorted out this problem. Well i've found the possible source of the problem. It is not the radio, but i've moved it farther from the APM. If it's powered vi the ESC : no GPS fix, if it's powered by any other…"
Oct 5, 2011

Michael Pursifull replied to James's discussion GPS Issues with shared power - Help!
"lol. yeah, I only mean to try w/o rx on the bench, for testing and diagnosis :)"
Oct 1, 2011

Profile Information

About Me:
Tall, work in software
Please tell us a bit about your UAV interest
been thinking about this for a while to try and get some way of finding out how bad the traffic is on the roads near my house

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James's Blog

UAVs at DSEi London 2011

Posted on September 15, 2011 at 7:30am 6 Comments

DSEi is the world's largest fully integrated security and defense exhibition, or at least that is what the website says. The claim is bold, but with over 1300 exhibitors from nearly 100 countries, the claim looks on paper to be valid. Once inside London's ExCel conference center, you certainly get the feeling that the promotion literature is true; the place is huge and…


UAVs and 3D printing - A match made in heaven?

Posted on July 28, 2011 at 7:44am 7 Comments

Have just seen the following article on The Register:




Ok, so it is a touch pricey (£5000), but not so long ago, 3D printing was silly expensive. Then came RepRap and the others.


More information from New Scientist:…


Flight testing - Well, learning to fly

Posted on May 20, 2011 at 6:00am 0 Comments

Since my last post here, I've been patiently waiting for HobbyKing to get more Turingy 9x radio systems in stock. Alas, they sold out of Mode 2 before I could get an order together with a friend at work, so I went for a mode 1 when he placed his order and laid plans to break out the tools and change things over.

However, after a short wait, the assorted kit we…



Posted on January 18, 2011 at 5:30am 6 Comments

I was not able to find anything about this ont he blog so far, but as I was browsing Hackaday this morning, I saw a link to the Vicacopter site. http://vicacopter.com/vika1.php

It looks very similar to the ArduCopter, but seems to only have 2 accelerometers rather than…


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