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Randy
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  • Tokyo
  • Japan
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Randy's Groups

Randy's Discussions

PixRacer with Ardupilot

Started this discussion. Last reply by Artem 38 minutes ago. 804 Replies

Ardupilot on QC Snapdragon

Started this discussion. Last reply by David Ahlgren Mar 10. 3 Replies

Pixhawk 1MB flash limit

Started this discussion. Last reply by Mark Brummett May 11. 85 Replies

 

Welcome, Randy!

Latest Activity

Artem replied to Randy's discussion PixRacer with Ardupilot
"Here are all of the logs from yesterdays flights, the last three are the most interesting in my opinion.  the first 2 logs have autotune attempts, the second produced good usable roll/pitch values. "
38 minutes ago
Richard Kennedy replied to Randy's discussion PixRacer with Ardupilot
"did you find a suitable case for that CSGShop gps? One thing that is nice about many of the cheaper eBay etc gps's is the form factor as they are inside a case with a nice encased single wire harness which looks cleaner and the single encased…"
2 hours ago
Chopper replied to Randy's discussion PixRacer with Ardupilot
"FWI, I purchased a Neo-M8N off ebag for a GREAT price. Tried to update the FW on it with u-center and couldn't. Found out the Ublox chip it was a clone (that's a surprise). From that point on I decided I wasn't buying clones anymore…"
3 hours ago
Artem replied to Randy's discussion PixRacer with Ardupilot
"It would also be good to default that for Y3 along with ATC_SLEW_YAW = 18000ATC_Y_MAX = 54000 - 100000 (MP description says max 54k but when set to 100k it seemed better, so I've left it at that)  "
3 hours ago
Tim Gold replied to Randy's discussion PixRacer with Ardupilot
"I have been working on a project to implement PixRacer with Plane and am really close to being able to test fly.  I have the latest dev version loaded.  Other than the obvious risks are there any major concerns about being able…"
6 hours ago

Developer
Andrew Tridgell replied to Randy's discussion PixRacer with Ardupilot
"@Artem, I have reproduced this and I've pushed a fix to master. Thanks for letting us know! I haven't looked at the other issues yet "
13 hours ago
Richard Kennedy replied to Randy's discussion PixRacer with Ardupilot
"x2  re- with the 3.4 and EKF 2 enabled and internal compass disabled w/ pixhawk.   "Still some alt_hold trouble. It still makes small yaw adjustments, and occasionally some sudden bursts of power/increases in altitude." "
17 hours ago
Richard Kennedy replied to Randy's discussion PixRacer with Ardupilot
"I hope for you and other devs sake there is somewhat of a way to figure whether any issue is PR or the code itself. I think the vast majority of flyers are still pixhawks still so it would be my vote to focus on 3.4 / pixhawk platform and keep it…"
18 hours ago

Developer
Randy replied to Randy's discussion PixRacer with Ardupilot
"By the way, we're going to start beta testing Copter-3.4 certainly within a week.  I'll do a new blog post and we might do the testing/support discussion on the new ardupilot discourse servers."
18 hours ago
Cala replied to Randy's discussion PixRacer with Ardupilot
"The forum isn't working well mow, I can't upload nothing too."
19 hours ago
Artem replied to Randy's discussion PixRacer with Ardupilot
"couldn't upload in the original post. "
20 hours ago
Artem replied to Randy's discussion PixRacer with Ardupilot
"Here I am with some more notes on the AC3.4 - e3b2e90a and pixracer. 1. It sucks trying to find parameters when a lot of them changed their names. 2. Setting ATC_RAT_YAW_FILT to 20hz does NOT survive reboot, it defaults back to 5hz after…"
20 hours ago
Scott W replied to Randy's discussion PixRacer with Ardupilot
"Still can't access the home page or upload my log files, but want to mention something...  I know I say bad things about this GPS all the time, but it's worth mentioning again..  (because it causes SOO many subtile issues and I…"
yesterday
Scott W replied to Randy's discussion PixRacer with Ardupilot
"I understand.. Especially when stock from the original providers is so poor... They should make it clear that these are basically built to order.. or it at least seems that way..   My guess is they are collecting enough orders to pay for…"
yesterday
Scott W replied to Randy's discussion PixRacer with Ardupilot
"Retry File Attach..."
yesterday
Scott W replied to Randy's discussion PixRacer with Ardupilot
"Logs for Dev's...   Running a copy of arducopter 3.4 I downloaded/installed on 5/21.Still some alt_hold trouble.  It still makes small yaw adjustments, and occasionally some sudden bursts of power/increases in altitude. …"
yesterday

Profile Information

About Me:
Lead developer of ArduCopter. I coordinate releases, provide support for users having trouble with their copters, add new features (most often based on ideas and suggestions from the community). I also help others get their code integrated into ArduCopter.

You can find numerous video tutorials from me here: http://www.youtube.com/channel/UCm393BzMOyRPUo8MtKp5alg
Please tell us a bit about your UAV interest
Interested in quads and helis mostly. I got my start in this field by reading the electronics tutorials from Sparkfun and from watching the success of Jack Crossfire's vicacopter. I've learned an enormous amount from the combined wisdom of the people on the DIYDrones forums and members of the core dev team including Jason Short, Tridge, Doug Weibel, Leonard and many more.
Hometown:
Karuizawa, Japan

Randy's Photos

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Randy's Blog

Terrain Following Missions using Lidar

Posted on May 13, 2016 at 11:30pm 24 Comments

The upcoming Copter-3.4 release will include terrain following support for mission commands using either Google earth altitude data or a Laser Range Finder.  This is a demonstration video shot at a ski hill near my home in Karuizawa Japan of this new feature.

For this test I used a venerable 3DR IRIS with a …

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Copter-3.3 released!

Posted on October 8, 2015 at 9:58pm 80 Comments

After months of testing by the beta-testing team and no significant issue during the soft release, Copter-3.3 has been released.  You can load this version onto your vehicle using the…

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Copter-3.3 ready for wider use

Posted on September 28, 2015 at 7:18pm 82 Comments

After months of testing by the beta-testing team, Copter-3.3 is ready for wider use.  Similar to the Copter-3.2 release this is a "soft launch" meaning that for the next couple of weeks, we are asking users to load the new version using the Mission Planner's "Beta firmwares" link…

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NAVIO+ Linux board with APM:Copter 3.3

Posted on June 3, 2015 at 12:00am 23 Comments

Click here to skip the commentary and just see the vehicle flying.

The video above shows my first attempt (which was successful) to fly APM:Copter using a Linux board (…

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Multi-Vehicle testing with APM:Copter, Tracker and Mission Planner

Posted on May 3, 2015 at 8:21pm 36 Comments

For some tasks (like Search and Rescue and mapping) what you can do with one vehicle, you can probably do faster with multiple vehicles.  To test how well it works in practice I tested…

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Comment Wall (32 comments)

At 8:44am on January 5, 2011, Jack said…

Randy

I have been working on my own Quad with the NG code and have setup the Sonar and have it working very well . I have an indoor version with sonar and IR sensors and would like to know were the IR sensors are conected, what pins. I see you were working on implementing this so If you could help with basic setup I can try my hand at testing. Thanks for your work on the Sonar and good luck on the obstical avoidence.

Jack 

At 5:47am on January 30, 2011, Kári Davíðsson said…

Thanks Randy. 

I do not have write access to the svn repository.

So I will send you the changed AP_ADC lib probably later today.

I am not sure if a circular buffer is needed. The beauty of a 1st order IIR filter is that we only need one "old" sample and if a second order is needed only two old samples. But I will look a little better into the filter selection before committing anything to you.

At 5:45am on August 24, 2011, Jiro Hattori said…

Hi Randy

 One of the way to introduce technology of arduino as IMU is that something like what you have done. Most of the Japanese model flyer love to fly traditional helicopter. 

 Another approach may be exhibit something very unique at MAKE fair at Tokyo Institute of Technology.  There will be many open source hardware and software freaks as well.

At 9:10pm on March 7, 2012, Ravi said…

hi randy, i had been following your forum for align450. i just got my APM2 purple. i loaded the ardu heli firmware. everythings looks to be ok on mission planner. but there is no PWM on servo out pins. i armed the APM2 and does gets armed. the radio callibration bars move proportionately. evrything seems to be OK. but in 'status' there is no PWM on channel out pins. it shows '0' PWM on all out channels. can uou please suggets what might be the reason. the APM2 works fine with arduplane and arduquad firmware. ravi

At 5:53am on March 16, 2012,
T3
Aerhead
said…

Randy

I had a different problem with my APM2 that I was able to solve by following the procedure found in the wiki with a search for APM board problems.  My board would not connect to the planner and it works now.

Good luck

Larry

At 2:18pm on May 15, 2012, wilson javier madrid sossa said…

hello hello hug.
I can help with anything, I did several plannings flight with tri and firmware 2.0.49 and flew very well.
I did a quad and install 2.5.4 program a waypoint flight and the team took off like crazy.WP PIDs are by default and does not really move as you do. can you give me some information.

I appreciate your help

At 4:41pm on May 16, 2012, wilson javier madrid sossa said…

Please can you help me. I was flying my quadcopter and hold position when you turn the team went to ground. these are the last two log. I appreciateprompt help.

2012-05-16%2018-12-25.tlog

At 3:54pm on September 29, 2012, Marooned said…

Hi Randy

After your changes to Optical Flow I'm having troubles with compiling the sources:

ArduCopter.cpp: In function 'void init_ardupilot()':
ArduCopter.pde:-1: error: 'SPI3' was not declared in this scope
ArduCopter.pde:-1: error: 'SPI3_SPEED_2MHZ' was not declared in this scope

I have spi3.h file include in ArduCopter.pde but somehow it's not working that way. I did fetch&rebase with original repo.

At 3:12pm on September 30, 2012, Marooned said…

Sorry for troubles. It's working now. Looks like Arduino IDE had some hiccup.

I should probably move to some better IDE as I'm using Arduino only for compiling/uploading and all files are edited in my fav editor and I have to restart Arduino every time I change something as it doesn't follow outside files changes.

Anyway, sorry for bothering you.

At 6:30pm on December 1, 2012,
T3
William Premerlani
said…

Hi Randy,

Regarding a question that Shyam asked about gimbal lock when he was trying to use APM to stabilize a camera, he and I finally solved the issue. Here is a link.

No one on diydrones was able to help Shyam, he finally contacted me directly.

Best regards,

Bill Premerlani

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