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Randy's Groups

Randy's Discussions

figuring out the Antenna Tracker

Started this discussion. Last reply by Doug Walmsley 21 hours ago. 53 Replies

ArduCopter-3.2 beta testing

Started this discussion. Last reply by Alex Wong 40 minutes ago. 3472 Replies

ArduCopter-3.1 released!

Started this discussion. Last reply by Bill Isenberger Oct 19. 1530 Replies

 

Welcome, Randy!

Latest Activity

Erwin Quilloy commented on Randy's blog post ArduCopter 3.2 Released
"@larry Try what I did, When I downgraded to 3.1.5 (I'm glad that I got a hex file for this stable firmware, because the Previous Firmware option gives 3,1.4 instead), I did a factory reset using CLI. That step cleared every setting on my…"
13 minutes ago
Alex Wong replied to Randy's discussion ArduCopter-3.2 beta testing
"Thanks, I was thinking that was the issue and I will recalibrate the ESC's and see if that helps.  Otherwise I will replace the motor 6 ESC. I did do A LOT of testing with motors but either without props or under take off speed.  I…"
40 minutes ago
Julien Dubois replied to Randy's discussion ArduCopter-3.2 beta testing
"Haha, I bet the legs will be the limit!!"
2 hours ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.2 beta testing
"Run faster! Or set the Way point nav speed higher."
2 hours ago
Larry Field commented on Randy's blog post ArduCopter 3.2 Released
"I have been running FW 3.1.5 for some time with no problems. Updated to FW 3.2, now accelerometers will not calibrate. At one point I received error msg: Failed to Level: AC 22.0.37 + is required. However, I haven't received this msg since that…"
3 hours ago
Michael Gunter replied to Randy's discussion ArduCopter-3.2 beta testing
"Not sure if someone has answered this question but, how do I speedup follow me? Searched a lot and still have no answer yet."
3 hours ago

Admin
Gary Mortimer replied to Randy's discussion ArduCopter-3.2 beta testing
"I have had the same problem with a brand new AP out the box, the calibration is just skipped through and then it says fail. I was thinking it was a mission planner problem."
5 hours ago
Larry Field replied to Randy's discussion ArduCopter-3.2 beta testing
"Note: I went back and installed FW 3.1 and Accel Calibration works fine.  What's up? "
5 hours ago
Larry Field replied to Randy's discussion ArduCopter-3.2 beta testing
"I have been running FW 3.1.5 for some time with no problems. Updated to FW 3.2, now accelerometers will not calibrate.  Any suggestions?  Larry"
7 hours ago
Erwin Quilloy commented on Randy's blog post ArduCopter 3.2 Released
"i have just uploaded AC3.2 again, and it seems to work well :) no issues on arming and booting. I cant' wait to test this new firmware outside :)"
8 hours ago
Julien Dubois replied to Randy's discussion ArduCopter-3.2 beta testing
"Could you please post a log."
8 hours ago

Developer
Rob_Lefebvre commented on Randy's blog post ArduCopter 3.2 Released
"Most gimbals are usable.  At this point, there is just a simple PWM interface, which most gimbals are already designed to accept."
8 hours ago
Vinnie Tsoi commented on Randy's blog post ArduCopter 3.2 Released
"@Dharmik Dave, I commented on this yesterday too.  I have APM 2.5 on my Steadidrone that I updated to 3.2RC and GPS stopped working with high HDOP.  Randy commented back that it should reprogram, but does not seem to be the case on…"
8 hours ago
Steve Mitton commented on Randy's blog post ArduCopter 3.2 Released
"What kind of gimbals useable with Pixhawk? "
8 hours ago
Erwin Quilloy commented on Randy's blog post ArduCopter 3.2 Released
"Got the problem isolate. It seems that after I flash my apm's firmware to AC3.2, I got issues with my ESC. but not because of the AC3.2, I tried going back to 3.15, then factory reset to erase everything on the APM. Then the esc is back to…"
8 hours ago
Henri replied to Randy's discussion ArduCopter-3.2 beta testing
"Not sure.. Pixhawk and v3.2 with EKF on, testing on a quad. Stabilize, Alt hold, Loiter and RTL are almost perfect. As soon as Pos hold is engaged, the quad goes east direction like if on a mission..?   So in short even auto land is virtually…"
9 hours ago

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

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Randy's Blog

ArduCopter 3.2 Released

Posted on November 24, 2014 at 8:56pm 55 Comments

ArduCopter 3.2 (aka APM:Copter) has been released as the default version replacing AC3.1.5. This is the exact same version that we invited all users to test two weeks ago.  Users who wish continue using AC3.1.5 can find it under the "Pick…

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ArduCopter 3.2 ready for wider use

Posted on November 7, 2014 at 2:18am 191 Comments

After months of testing, ArduCopter 3.2 (aka APM:Copter) is ready for widespread use and we invite all users to give it a try.  In order to manage the support load at first it will be available only through the Mission Planner and APM Planner2's Beta Firmwares link.  This link is visible from the regular "Install Firmware" page if you check…

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Red Balloon Finder

Posted on June 17, 2014 at 5:04am 30 Comments

As many probably know, this year's Sparkfun Autonomous Vehicle Competition (AVC) is similar to last year's except that a new challenge has…

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GPS Glitch detection in AC3.1

Posted on December 14, 2013 at 6:42am 32 Comments

AC3.1 is going out very soon and includes a new safety feature called GPS glitch detection.  There's a wiki page about it but I'd like to highlight how it works because it's near the top of the list of safety issues.  The method…

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Dropping a Rover from Hexacopter - Part III

Posted on August 22, 2013 at 7:40pm 32 Comments

As a follow-up to the rover drops #1 and #2 I spent a day with Assistant Professor Nagatani-san of…

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Comment Wall (25 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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