Nathan Harris
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PPM using traditional radio receiver

Started this discussion. Last reply by Nathan Harris Feb 21, 2016. 2 Replies

Hi all,I am really struggling with how connect my old 35MHz radio receiver unit to the pixhawk autopilot. unitIts an old FM(PPM) 6 channel Empfanger 35 MHZ it has no model numberCan I connect an old…Continue

Legacy Wiki HELP Ardupiolt Mega

Started Feb 7, 2016 0 Replies

Hi allCan someone direct me on how to find the original legacy wiki, I am picking up an old project that uses the Ardupliot Mega system.It seems a shame as I have all the equipment, I could just do…Continue

Tags: document, manual, mega, ardupilot, Legacy

Software in the Loop cannot build ArduPlane Makefile.desktop

Started this discussion. Last reply by Mike Perillo Aug 13, 2013. 3 Replies

Hi there could anyone helpI am trying to build the Arduplane with the SITL build the instructions state the following...make -f ../libraries/Desktop/Makefile.desktoptrouble is when I download the…Continue

Init_Ardupilot() Puzzle

Started this discussion. Last reply by Nathan Harris Feb 11, 2012. 8 Replies

Dear allCan anyone clarify something for me? I am trying to understand where the CLI mode program is initiated from? Originally I assumed it was running from the APM board just like a mini OS but…Continue

 

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Profile Information

About Me:
IT Admin
Please tell us a bit about your UAV interest
High Altitude Balloon Systems

Aim to launch UAV from HAB
Hometown:
Wootton

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Comment Wall (3 comments)

At 12:42pm on January 15, 2012, Cuddy said…

I've been working on HAB stuff for the past 3 years on and off - it has intensified more over the past year. I talk to the other members of UKHAS quite a bit on the irc channel #highaltitude. They are a very good group of people with a lot of experience and willing to share etc.

So far I've only done 1 launch (last Summer) which went very well - preparing for 2nd launch which should hopefully be within a couple of months. My site is http://habexperiments.wordpress.com however, it doesn't get updated that regularly (I really should update it more!). As well as working on the 2nd launch, I'm also putting a significant amount of effort into the idea of a "glider" or "autonomous return vehicle" that would make retrieving etc far easier and is just quite a "cool" project!

Initially I though I would code my own autopilot just simply using rudder to control (like the GPS Boomerang) however, the challenge with that approach is creating a neutrally stable glider - very difficult.

So, after a fair bit of research I've opted to use the APM2 (currently have one on order) to pilot the glider back.

Someone I know has used the APM1 (with IMU stuff) on some test missions for their glider however experienced significant failure of both pressure sensors and others - I'm hoping that this is all corrected etc in APM2. I will probably fly it on one of my balloons just to make sure it all works..

I've noticed that there are a few of us here on diydrones that are exploring similar projects and it was suggested a couple of days ago that we should perhaps start a wiki and work collaboratively to solve the problem! - Something I'm all for.

With regards to your project - have you managed to obtain CAA permission to fly the glider over here? From your display pic it looks like you've already had a mission! How did it go?

At 2:02pm on January 16, 2012, Nathan Harris said…

Hello there

Yes its a long road, I had serious set backs along the way GPS Boomerang being a big one, the company went under and so did my spares supply. So here we are...

I had one flight myself last year but experienced a wing failure (didn't see that one coming to be honest), since then I have been busyy saving for a replacement. I had already used the Arduino for the old setup to control the camera and telemetry so DIYdrones seemed perfect.

The CAA covered my balloon launch but I dropped the glider from 500m so didn't worry about the guided retrievel system, I though it best to look to solving that when I was launching above 500m as you start to get into sense and avoid requirements.

A wiki sounds a good idea how difficult would it be to setup? I'd like to help, but as you know the road is long and sometime there are not enough hours in the day.

I am looking at the coding at the minute, I am just trying to understand what does what at the moment. I have started a flow diagram which I will review shortly.

 

 

 

 

At 2:58pm on January 17, 2012, Cuddy said…

Ahh I see!

I have contacted the CAA and currently they are "deliberating" - which hopefully will be positive if I can give them a time and area of flight (closer to launch).

A wiki would be fairly easy to set up - however, creating pages on the UKHAS wiki is probably the best idea - anyone with a free account can post on there (I have a couple of pages on there). www.ukhas.org.uk

That's a very good idea, I have looked at the code and have found it quite hard to identify exactly what does what.

Cheers

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