Nathan Harris
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Software in the Loop cannot build ArduPlane Makefile.desktop

Started Jan 19 0 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

Ardupilot program flow diagram 2.x ASSISTANCE REQUIRED

Started this discussion. Last reply by Jean-Philippe Issarte Oct 10, 2012. 14 Replies

Dear allIn an effort to fully understand the way the system works I have started a program flow diagram.I could not find a pictorial explanation on the forums, with this in mind would someone mind…Continue

Tags: process, program, flow, diagram

High Altitude Balloon Equipment Retreval

Started this discussion. Last reply by Ehren Dec 19, 2011. 29 Replies

 Dear all, I have been working on a high altitude balloon system with a glider to return your equipment called GPSBoomerang a product I bought from New Zealand. After spending a lot of effort…Continue

Tags: payload, weight, glider, altitude, high

 

Nathan Harris's Page

Latest Activity

Nathan Harris posted a discussion

Software in the Loop cannot build ArduPlane Makefile.desktop

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 repositorygit clone https://code.google.com/p/ardupilot-mega/the file and directory Desktop/Makefile.desktop do not exist, I notice though if i browse the git this is downloading the master folder, the Arduplane-release folder though does seem to…See More
Jan 19
0 Comments
Nathan Harris replied to Tristram Cheer's discussion Silly Question: X-Plane 10 PT-60 Pulling to the left
"HI guys I get this issue, why is the plane pulling left so much? I get the same issue in X plane and flightgear I have tried the first parameter file but will try the modified one and post the result, but it just seems wrong, yet on calibration it…"
Jan 5
Nathan Harris replied to Mohammad's discussion X-plane HIL
"Hi This may help but you have not put a lot of description about your problem. 1.uploaded the Hardware in the Loop firware to your ardupilot hardware (make sure you click over the plane text when you do this) 2.calibrated your radio controls after…"
Jan 5
Nathan Harris replied to Jason Brown's discussion Is there a tutorial that goes through all the Ardupilot code?
"I am in the UK, you sound like you have a whole team? Are you working with students? The Arduino is C++ really I am afraid I am no expert, just learning bit by bit. You find the forums are very helpful and if you know Pascal you'll be fine,the…"
Nov 28, 2012
Nathan Harris replied to Jason Brown's discussion Is there a tutorial that goes through all the Ardupilot code?
"Hi Prahas I am just getting back into this project, I'd be most interested in hearing your plans, I am afraid I had some aero issue with my first glider and some other issues that got in the way. Would be happy to hear what your doing…"
Nov 27, 2012
Nathan Harris replied to Nathan Harris's discussion Ardupilot program flow diagram 2.x ASSISTANCE REQUIRED
"Hi Jean Your most welcome, but be aware the diagram will be out of date and needs updating. I hope to do this soon but welcome any help or insight :)"
Oct 9, 2012
Nathan Harris replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"Thanks Chris, Mike below was correct, I was looking at the wrong code. It says Arduplane 2.8 so it confused me, I am now looking at the Ardupilot Mega 2.28 code, this will make more sense I am sure..."
Feb 11, 2012
Nathan Harris replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"Mike your spot on, this is the link I had http://code.google.com/p/ardupilot/source/browse/#git%2FArduPilot_2_8 which explians a lot :) thank you"
Feb 11, 2012
Michael Pursifull replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"I think you pulled Ardupilot (Legacy) code rather than ArduPilotMega. Meanwhile, the CLI print output you are looking for is in the current ArduPilotMega / ArduPlane code.  If you are running APM and not the old AP hardware, you will want to be…"
Feb 11, 2012

3D RoboticsChris Anderson replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"Nathan: Are you looking at the shared Libraries, too? Most of the ArduPlane code is in there, not the ArduPlane-specific folder."
Feb 11, 2012
Michael Pursifull replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"The previous grep output was from the released 2.28. Here is what I get from the current GIT pull (updated a few moments ago) -  code/ardupilot-mega/ArduCopter/system.pde:27: "Move the slide switch and reset to…"
Feb 11, 2012
Nathan Harris replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"Hi Mike, thanks for replying... I am using Arduplane 2.8 from the Git repository (two weeks ago), on those lines in system.pde I get line 27:// Enable GPS line 265:    break; I had a look at 2.7 and I see the code, just as you say.…"
Feb 11, 2012
Nathan Harris replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"PS GIT gives fatal: early EOFfatal: The remote end hung up unexpectedlyfatal: index-pack failederror: RPC failed; result=18, HTTP code = 200"
Feb 11, 2012
Michael Pursifull replied to Nathan Harris's discussion Init_Ardupilot() Puzzle
"Take another look at your grep syntax/command -  ArduPlane/system.pde:27: "Move the slide switch and reset to FLY.\n"ArduPlane/system.pde:265: Serial.println_P(PSTR("\nMove the slide switch and reset to FLY.\n"));"
Feb 11, 2012
Nathan Harris posted a discussion

Init_Ardupilot() Puzzle

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 looking through the ardupilot 2.8 code I see nothing relating to the terminal screen. For instance the opening screen says"Move the slide switch and reset to fly"a egrep of the code shows this serial output does not existTherefore I conclude that the CLI runs from the ground station software?Please…See More
Feb 11, 2012
8 Comments
Nathan Harris replied to Nathan Harris's discussion Ardupilot program flow diagram 2.x
"Thank you for the encouragement Dan, I suspect the developers are under a lot of pressure to release v3 and the new APM. Obviously I do not wish to add pressure but it would be great just to get some help. The other thing of course is that v3 could…"
Feb 9, 2012

Profile Information

About Me:
IT Admin
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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