Developer
Andrew Tridgell
  • Male
  • Canberra, ACT
  • Australia
Share

Andrew Tridgell's Friends

  • Leonid Foiu-Khatskevych
  • ian nash
  • Moataz Dahabra
  • Farhad Samadzadegan
  • Kelly Foster
  • Viktor
  • elon fredriksen
  • Kiruthi Murugan
  • Brad Golding
  • seno nugroho
  • Charles
  • Rusyadi
  • TersusAdmin
  • Marko Thaler
  • mohammad

Andrew Tridgell's Groups

Andrew Tridgell's Discussions

APM:Plane 2.76 released

Started this discussion. Last reply by SlipstreamFPV Feb 5, 2014. 30 Replies

I've just released APM:Plane 2.76 with an important bug fix.Please see the release announcement for details.Continue

APM:Plane 2.75 released

Started this discussion. Last reply by Andrew Tridgell Nov 12, 2013. 29 Replies

APM:Please 2.75 has now been released.Have a look at the release notes in the forum for lots of details on the…Continue

APM:Plane 2.74 released

Started this discussion. Last reply by Gavin Greenwood Feb 23, 2015. 818 Replies

The APM dev team is delighted to announce the release of APM:Plane 2.74, a major new release with a lot of new…Continue

ArduPlane 2.74beta3 released

Started this discussion. Last reply by Andrew Tridgell Jul 15, 2013. 18 Replies

I've just released ArduPlane 2.74beta3. I'm hoping this will be the last beta before the 2.74 release. Please test it as much as you can!The simplest way to try it is to use a pre-built firmware from…Continue

 

Andrew Tridgell's Page

Latest Activity

Jeremy Randle commented on Andrew Tridgell's blog post APM:Plane 3.6.0 released
"My problem is with a Spektrum Receiver, not Futaba. I have been using a genuine 3DR Pixhawk and a Spektrum AR7700 receiver with no problems in my existing aircraft. The receiver is connect to the Pixhawk via its SRXL output. I have been using Plane…"
Thursday

Developer
Andrew Tridgell replied to David's discussion Call For SITL Experts: Connecting Ardupilot SITL to a MATLAB/Simulink-Based Simulation
"Hi David, The ArduPilot SITL framework already has the ability to simulate GPS outages and other sensor errors. I don't think you should try to replicate that. Have a look at the SIM_* parameters in ArduPilot. I also suggest you try flying the…"
Wednesday

Developer
Andrew Tridgell replied to David's discussion Call For SITL Experts: Connecting Ardupilot SITL to a MATLAB/Simulink-Based Simulation
"my apologies, I see you've already decided on UDP. That is good. The next key thing is timing. As you are aiming for this to be a high fidelity simulation the handling of time is absolutely critical. What you need is "lock step…"
Wednesday

Developer
Andrew Tridgell replied to David's discussion Call For SITL Experts: Connecting Ardupilot SITL to a MATLAB/Simulink-Based Simulation
"Hi David, That sounds like a very nice project! Adding a new SITL backend is not difficult, assuming you know a bit of C++. The existing SITL backends are here: https://github.com/ArduPilot/ardupilot/tree/master/libraries/SITL we support a wide…"
Wednesday

Developer
Andrew Tridgell commented on Chris Anderson's blog post First Pixhawk-based drone company to IPO
"It's good to see companies like this really trying to do a good aircraft for the agricultural market. I've helped out AgEagle a bit with their parameters and log analysis. Small delta wings like this are very good for this sort of…"
Tuesday
JB commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"For anyone that is interested I found the SITL quadplane instructions now here: http://ardupilot.org/plane/docs/quadplane-simulation.html Now to make a Xplane quadplane!"
Jul 16

Developer
Andrew Tridgell replied to Maëlle Branco's discussion UAV X-Plane models for SITL use in the group ArduPlane User Group
"Thanks! Great to see some new models. I've just tried the Penguin, and the control surfaces don't seem right. Elevator moves the ailerons and the throttle doesn't work. Rudder input works fine. On the FX61 the elevator input does…"
Jul 16
JB commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"Lol Tridge! I think that needs to tested! Seeriously! ;-) From memory when I visited the Cape in the 90's, the thrust on the Space Shuttle thrusters do equivalent of 40 million HP or something silly. They have gas turbine fuel pumps to pump…"
Jul 14
Thomas Stanley-Jones commented on Andrew Tridgell's blog post Terrain following added to APM:Plane
"I'm trying to find out how to change the source of the terrain data.  I see it hinted that one can, but I haven't been able to find out how yet.  It sounds like it needs to be changed in the code of Mission Planner, or maybe it…"
Jul 13

Developer
Andrew Tridgell commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"I do think it would be fun to graft the shuttle boosters or SR71 engines onto a 747 and test fly the worlds biggest quadplane ... "
Jul 12

Developer
Andrew Tridgell commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"@JB, it would be interesting to try an X-Plane QuadPlane, but I am not sure it will work. It worked for fixed wing and helis as the control bandwidth needed is quite low. I am typically getting less than 30Hz sensor data from X-Plane 10, which is…"
Jul 12

Developer
Andrew Tridgell commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"@Seno, yes, SITL is way better. We'll probably remove HIL support in a future version. The lag of HIL is just too much. "
Jul 12
Seno Sahisnu commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"This is great! I've been working with HIL simulator for X-Plane (the old HIL version), but it seems like your SITL version is far more superior. I will test this immediately!"
Jul 12
JB commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"Now I have to make some X-Plane quadplane models... "
Jul 12
uavfans commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
"Great works"
Jul 12

Developer
Andrew Tridgell commented on Andrew Tridgell's blog post Using X-Plane 10 with ArduPilot SITL
Jul 12

Profile Information

About Me:
http://samba.org/tridge
Please tell us a bit about your UAV interest
Lead developer for APM:Plane and APM:Rover
Note: the best way to get in touch with me quickly is via the ArduPilot gitter chat here: https://gitter.im/diydrones/ardupilot
Hometown:
Canberra, Australia

Andrew Tridgell's Photos

Loading…
  • Add Photos
  • View All

Andrew Tridgell's Blog

Using X-Plane 10 with ArduPilot SITL

Posted on June 30, 2016 at 4:53pm 23 Comments

ArduPilot has been able to use X-Plane as a HIL (hardware in the loop) backend for quite some time, but it never worked particularly well as the limitations of the USB interface to the hardware prevented good sensor timings.

We have recently added the ability to use X-Plane 10 as a SITL backend, which works much better. The SITL (software…

Continue

APM:Plane 3.6.0 released

Posted on June 10, 2016 at 5:00pm 32 Comments

The ArduPilot development team is proud to announce the release of version 3.6.0 of APM:Plane. This is a major update so please read the notes carefully.



The biggest changes in this release are:

  • major update to PX4Firmware code
  • major update to QuadPlane code
  • addition of…
Continue

APM:Plane double release 3.5.3 and 3.6.0beta1

Posted on April 30, 2016 at 1:16am 30 Comments

As mentioned on the 3.5.2 release discussion we have decided to do a 3.5.3 release to fix a couple of important bugs found by users in 3.5.2.

The main motivation for the release is a problem with flying without a compass enabled. If you fly 3.5.2 with MAG_ENABLE=0 or no compass attached then there is a risk…

Continue

APM:Plane 3.5.2 released

Posted on March 25, 2016 at 9:05pm 74 Comments

The ArduPilot development team is proud to announce the release of version 3.5.2 of APM:Plane. This is a minor release with small changes.



The main reason for this release over the recent 3.5.1 release is a fix for a bug where the px4io co-processor on a Pixhawk can run out of memory while booting. This…

Continue

Comment Wall (17 comments)

At 7:20pm on November 27, 2012,
300km
moglos
said…

Hi Andrew

It looks like my navigation gremlin isn't completely solved. I've posted an update with images and logs at http://diydrones.com/forum/topics/fly-away-saved-at-1-8km-help-with-logs-please

I wonder if you're able to see anything else obviously wrong?

Thanks

Moglos

At 8:12pm on December 19, 2012, Jamie Glover said…

Tridge, can I bother you to look over 5 log files to see if you can spot the crash and possibly what happened? I was flying my Skywalker with the exact same setup as always and have had many successful flights until yesterday. Two back to back and a totaled plane now. In FBWA it would go into a steady downward pitch. It was unresponsive to any of my input. I tried manual and RTL with no response. I had I think 5 logs on the APM after the flight and Ive looked through them, but Im not sure what Im looking at. The plane on the last crash stayed dangling in a tree for about 4 hours while I tried to get it down. Anyways, I would greatly appreciate your input. Email me if you wouldnt mind taking a look at the logs.

Thank you sir.

Jamie

At 12:51pm on March 16, 2013, Gary McCray said…

Hi Andrew, Ive just finished putting in a section on how to flash your PX4FMU board with the latest developer ArduCopter PX4 code from your firmware object repository.

It's pretty ugly and includes quite a bit of stuff for setting up  development environment as well.

And sadly at the end after flashing the new code to the PX4FMU it still won't establish a MavLink connection with Mission Planner although I am pretty sure the board is properly flashed.

I am giving you the link to my Wiki debacle here: https://code.google.com/p/arducopter/wiki/PX4_First

I would greatly appreciate any feedback you could give.

I actually produced this primarily to get feedback from you as I did not want to waste any more of your time than necessary with incomplete back and forths.

If you can point me in the right direction(s) I would greatly appreciate it and will be happy to modify the Wiki page appropriately.

I figure that if we can get this simplest FMU only one to be "acceptable" the rest should fall into place fairly easily.

Thank You very much for your assistance with this.

Gary McCray grmccray@yahoo.com (Please feel free to Email direct if you wish).

At 9:42am on April 22, 2013, Sid said…

Hi Andrew - 

I am new to ArduPlane development and having trouble getting it to build with Arduino.  

I would greatly appreciate any direction you can provide on what I am doing wrong.

This is what I have done:

I have downloaded Arduino 1.0.4, 1.0.3 and 1.5.2... I get the exact same set of errors whenever I tried to do a Verify / Compile of ArduPlane with any version of Arduino.  

There has to be something very basic here that I am missing.

I went here to get the latest Arduino development environment http://arduino.cc/en/Main/Software
There I downloaded Arduino 1.5.2
I extracted that to c:\Programming\Arduino
Then I was able to open Arduino and build their example programs without any errors.
I followed these instructions for getting set up for doing development:  http://arduino.cc/en/Guide/Windows
No problems with building the Blink test example.
I set up the Arduino Sketchfolder here:  C:\Users\Sid\Documents\Arduino
I set this in Arduino's preferences
I then went to this page and followed the instructions for setting up ArduPlane development https://code.google.com/p/ardupilot-mega/wiki/Code
I went here and downloaded the latest ArduPlane software - ArduPlane 2.7.1  https://code.google.com/p/ardupilot-mega/downloads/detail?name=ArduPlane-2.71.zip&can=2&q=
I unzipped it to my desktop.
I then copied them to the Arduino Sketchbook folder as shown on Chris' web page (only using Sid instead of Chris).
Inline image 2
I then opened Arduino 1.5.2 and did a Verify / Compile and got the following error messages:
ArduPlane:239: error: new declaration 'uint8_t digitalRead(uint8_t)'
C:\Programming\arduino-1.5.2\hardware\arduino\avr\cores\arduino/Arduino.h:102: error: ambiguates old declaration 'int digitalRead(uint8_t)'
ArduPlane:1288: error: expected constructor, destructor, or type conversion before 'int'
ArduPlane.pde: In function 'int SKETCH_MAIN(int, char* const*)':
ArduPlane:1288: error: 'OK' was not declared in this scope
compat.pde: In function 'uint8_t digitalRead(uint8_t)':
compat:33: error: new declaration 'uint8_t digitalRead(uint8_t)'
C:\Programming\arduino-1.5.2\hardware\arduino\avr\cores\arduino/Arduino.h:102: error: ambiguates old declaration 'int digitalRead(uint8_t)'
I am at a loss as to what I am doing wrong here and I hate asking for help.  Any direction would be really appreciated.  I will be ecstatic when I am able to get ArduPlane to build and can start doing real development with it.
Thanks again.
Sid

At 5:39pm on April 22, 2013,
Developer
Andrew Tridgell
said…

Hi Sid,

Have a look at http://firmware.diydrones.com/ under Tools, in the Arduino directory. That is the Arduino version you need.

Also see http://dev.ardupilot.com/ for more developer information.

Cheers, Tridge

At 8:07pm on May 24, 2013, Vishnu Rao said…
Hey Andrew! I'm flying an X8 with APM 2.5. I have quite struggled trying to tune the bird to the right PID settings. Lately I have been using the X5 Param file posted in the Common config website.
I noticed the X8 in your display picture, can you help me by sending me the parameter file you've been using?
My AUW is 4kgs. Any changes or suggestions to keep it safe and stable? I've taken care of the wings. Also when I was using the Arduplane 2.72, my plane would snake around while navigating. Is there anything I would've missed out?
Please help.
Thanks!
At 5:52pm on July 22, 2013,
Developer
Philip
said…
Hi Tridge
I sent you an email on your Samba email address with my contact details, will be up in Canberra tomorrow. Would be great to catch up if you are around.
Phil
At 10:28pm on September 15, 2013, MD said…

Hi Tridge,

Would it be feasible to code something to use the laser altimeter currently discussed on top content blog (link below). It's the first low cost and accurate one I've seen and could be used for both arducopter and arduplane, would be really good for autoland for both and avoidance, not to mention the what to do with it if put on a servo. Possible? If so, who would be best to ask to do this? Thanks.

Ryan

http://diydrones.ning.com/forum/topics/lightweight-low-cost-laser-altimeter

At 11:28pm on November 21, 2013, Paul Classon said…

Dear Andrew, I recently got back into RC modelling after 50 years (64 now) there have been some significant advances in both radio and airframes since the old OS Pixie days and rubber escapements.  I bought a Bixler 1 now a 2 which I wanted to fit one of the Hobbyking Crius AIO FC's to. The Multiwii and megapirate AIO FC with a Atmega 2560 MCU.  Which firmware would you advise to upload, preferably something which will make the setup as much plug and play as possible. Are you aware of any periodic gatherings down here in Melbourne for like minded RC flyers?  I thank you in advance BR Paul.

At 12:11pm on December 21, 2013, Jamie Glover said…

Hey Tridge,

I went out earlier this week and flew a mission with the University's plane to test out the GeoSearch program. After completing the mission, I put it into FBWA to bring it down for a landing. about 75 ft off the ground, it went into an straight down nose dive. This is the second time its happened, but this one was unrecoverable. Needless to say the crash totaled the plane. I was wondering if you could look through the logs to see if it is possibly the same issue as the bug that was fixed in 2.76.  I was running 2.76 firmware. I looked through the logs and you can see where the APM received the command to pull out of the dive, but the servos never responded to the command.  Anyways, I was thinking it is either the bug or an interference problem from a cell phone tower about a mile away. My professor wants to make sure either way before we put more money into the project. Ive attached the log files and would greatly appreciate any feedback.

2013-12-16%2016-14-38.param

2013-12-16%2016-14-38.tlog

You need to be a member of DIY Drones to add comments!

Join DIY Drones

 
 
 

© 2016   Created by Chris Anderson.   Powered by

Badges  |  Report an Issue  |  Terms of Service