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Randy
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Randy's Groups

Randy's Discussions

figuring out the Antenna Tracker

Started this discussion. Last reply by geni yesterday. 31 Replies

ArduCopter-3.2 beta testing

Started this discussion. Last reply by Pomaroli 31 minutes ago. 1877 Replies

ArduCopter-3.1 released!

Started this discussion. Last reply by dindong dantes yesterday. 1521 Replies

 

Welcome, Randy!

Latest Activity

Pomaroli replied to Randy's discussion ArduCopter-3.2 beta testing
"Josh i'm running the stable version AC3.1.5 which works ok, no problems there. From time to time i'm testing the newest Beta to see if it's handle my hexa.   "
31 minutes ago
Lior Zahavi replied to Randy's discussion ArduCopter-3.2 beta testing
"Whats Droid Planner 2.6 Beta? does it work with AC3.2? Also where can i download it for android? thanks. "
1 hour ago
Doug Walmsley replied to Randy's discussion ArduCopter-3.2 beta testing
"Randy, A few things for you to review when you have a minute. Dropbox URL contains logs of this evening's flight. https://www.dropbox.com/sh/7yzlcep21iaaj8e/AACLULPwY6eYINoAMJsvkEGpa?dl=0 Running into an issue with Y6 yawing…"
9 hours ago
Josh Welsh replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi Pomaroli, Ugh, I'm very sorry to hear!  Curious, if you just now loaded 3.2-rc9 what were you running before? -josh"
10 hours ago
Andre replied to Randy's discussion ArduCopter-3.2 beta testing
"if it is a bug, please leave it. I Like to have Loiter_turns with 0 Radius:-) I was looking for that . I´ll try it out when at home!t But I found a bug in Condition_Yaw. The Parameter relative or actual is always actual Heading (rel/act;0/1)."
11 hours ago
WCP replied to Randy's discussion ArduCopter-3.2 beta testing
"Rainer are you using APM 2.6 or Pixhawk ? also are you using DroidPlanner  Beta 2.6 for follow me ?"
11 hours ago
Brandon Clifford replied to Randy's discussion ArduCopter-3.2 beta testing
"After looking at it some more, I see my CH8 which is my PWM RSSI drops below 1500, (another issue I have been trying to fix) I think that may be the culprit in causing some issues. but not sure. Let me know if you guys have any feedback would love…"
12 hours ago
Brandon Clifford replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi, Loaded RC9 a few days ago, flew great! I did a quick FPV yesterday and was nice. It was a fresh install and all calibrations were done. Decided today I would go for a good FPV flight and I put it in POS HOLD while I fitted my goggles and I…"
12 hours ago
saqib shafiq replied to Randy's discussion ArduCopter-3.2 beta testing
"Yes i meant althold and loiter mode. Has anyone tried to see if it affects the landing? Iv not quite got my hex ready to fly and i do not want to risk any damage to it. I was playing about with it and when the sonar goes below 20cm i get a varied…"
14 hours ago

Developer
Marco Robustini replied to Randy's discussion ArduCopter-3.2 beta testing
"I'm sorry but i don't know what firmware is installed on that machine.It's possible that we have removed some features."
14 hours ago

Developer
Marco Robustini replied to Randy's discussion ArduCopter-3.2 beta testing
"Thanks Rainer for your feedback."
14 hours ago
Pomaroli replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi Leonard, today i was testing newly the Autotune with AC 3.2.rc9 on my hexa, but didn't workout. 3 time i was having nearly  a crash but it was windy, the 4 try without wind given a result, see log attached 2014-09-20 17-46-35-log. One…"
14 hours ago
Pomaroli replied to Randy's discussion ArduCopter-3.2 beta testing
"@Josh, 3. i expeceted you have 3s becasue FS_BATT_VOLTAGE is set to 10.5V 5. Nobe, the "INS_MPU6K_FILTER" by default is 0 (AC3.2.rc9) I decided to udpate to beta AC3.2.rc9  and try out some of your advices, but did not work out. I…"
15 hours ago
ReM replied to Randy's discussion ArduCopter-3.2 beta testing
"Maybe I found a bug. In Auto, LOITER_TURNS works perfect when Dir=0 (25 m radius circle clockwise). If Dir=1, it rotates clockwise but radius 0? I read manual and see, that for counter clockwise rotation Dir may set to -1. I not tried this..."
15 hours ago
Pomaroli replied to Randy's discussion ArduCopter-3.2 beta testing
"@Randy, thanks for correction..."
15 hours ago
Rainer K. replied to Randy's discussion ArduCopter-3.2 beta testing
"Hi Randy and Dev Team tested today RC 9 Pixhawk Guidet Mod    OK no problems Follow me      OK no problems Landen no problems motor switch off Auto Mode OK no problems I could find no errors. the version runs very…"
15 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

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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UAVs for measuring radiation levels in Japan

Posted on April 11, 2013 at 6:38pm 11 Comments

Two years after the March 11th tsunami in Japan that triggered the Nuclear disaster at the Fukushima power plant, there are still just over 300 thousand people who have not been able to return to their homes due to…

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Dropping a Rover from Hexacopter - Part II

Posted on March 15, 2013 at 12:32am 14 Comments

As a follow up to an indoor test we did a about a month ago (blog post here), Assistant Professor Nagatani-san of Tohoku University, Izu-san of…

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Comment Wall (23 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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