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Randy's Discussions

ArduCopter-3.0 ready for wider use

Started this discussion. Last reply by Duffy 12 minutes ago. 167 Replies

AC 2.9.1 vs 2.8.1 GPS accuracy

Started this discussion. Last reply by Radovan Breuss Jun 2. 302 Replies

ArduCopter 2.9 / 2.9.1 released

Started this discussion. Last reply by Randy 6 hours ago. 3685 Replies

 

Welcome, Randy!

Latest Activity

Duffy replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Great upgrade! I could tell it was going well from take off, nice and straight (never happened before) Much easier to place in hover (it was tricky before, would either climb or decent) it was windy but it felt very well placed in the air (but…"
12 minutes ago
Jim Townsend replied to Randy's discussion ArduCopter-3.0 ready for wider use
"OK, thanks..  I did read the opening info in this thread..  I got caught up with the compassmot thing and missed the check video. So..   In the house, connected to my computer, it arms just fine.  The Mag Field is…"
14 minutes ago
James W Powell replied to Randy's discussion ArduCopter-3.0 ready for wider use
"adjusted THR_MID, same error, I honestly do not know how to read the log files, but here it is none the less"
48 minutes ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Jim this is a new feature to provide a warning before arming that your vehicle is not configured correctly. http://www.youtube.com/watch?v=gZ3H2eLmStI"
1 hour ago
James W Powell replied to Randy's discussion ArduCopter-3.0 ready for wider use
"So you can't go over that value or it will cause the compassmot process to fail?"
1 hour ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.0 ready for wider use
"You need to set your THR_MID value. It is set to the default value of 500. Review your log file and determine what PWM value your vehicle is hovering at.  That will be the correct THR_MID value."
1 hour ago
Bruno Bedard replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Yes there are new verifications. Read the opening post "...pre-arm checks" and there is a link to a video..."
1 hour ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Definitely upgrade your Mission Planner.  I recommend using the MSI 1.2.53 from here http://ardupilot.com/downloads/?category=4 There are some usb driver changes that will not be picked up if you use the internal MP update process that…"
1 hour ago
Jim Townsend replied to Randy's discussion ArduCopter-3.0 ready for wider use
"My Hex won't arm with 3.0 I just upgraded my 3DR Hex (APM 2.5) with the 3.0 firmware..   I went out to see how it would fly, but it will no longer arm.  I have telemetry.  I'm using 3DR radios with a Samsung Galaxy Note II…"
1 hour ago
palo sestak replied to Randy's discussion ArduCopter-3.0 ready for wider use
"I have just returned from field. Have tested ACM 3.0.0. From beginning I was pleased - just glitches of motors that could be because of vibrations - I have no anti-vibration setup. Then I was going to switch to loiter. Just before I touched the…"
1 hour ago
Francis Ignacio replied to Randy's discussion ArduCopter-3.0 ready for wider use
"I'm using the latest version of the Mission Planner, version 1.2.53.   Thanks, Craig."
1 hour ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.0 ready for wider use
"42Hz is typo or error of some sort. See this: http://copter.ardupilot.com/wiki/arducopter-parameters/#MPU6000_filter_frequency_INS_MPU6K_FILTER The default value on ArduPlane, APMrover2 and ArduCopter is 20Hz. What version of Mission Planner…"
2 hours ago
audrius chomicius replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Dear Randy,   thank you for support.   it's the first time to me. i have been flying many times before with 2.9.1b RC3; and only few time saw that there was fast descent but only ~1m not more when it reaches WP. but at this last time…"
2 hours ago
Francis Ignacio replied to Randy's discussion ArduCopter-3.0 ready for wider use
"Randy and Dev Team, Just need clarification regarding INS_MPU6K_FILTER setting.   I noticed that in 2.9.1b the INS_MPU6K_FILTER setting was changed to 20hz as per the release notes.   Now with this release 3.0 in the Mission Planner, in…"
2 hours ago

Wiki Ninja
Gary McCray replied to Randy's discussion ArduCopter-3.0 ready for wider use
"I thought it might be worth trying to put an overall perspective on the "New" GPS warning. There are basically 3 reasons for the GPS warning. A. We have just figured out the potential greatest magnitude of the problem which is entirely…"
2 hours ago

3D Robotics
Craig Elder replied to Randy's discussion ArduCopter-3.0 ready for wider use
"The use of a comma or a decimal place depends on the local settings on your pc. The declination is entered in degrees but is stored in radians.  When you view it in the advanced parameters list it will be shown in radians"
3 hours ago

Profile Information

About Me:
I have many years of programming experience in a variety of languages (C, C++, Java, Basic) but in the last year or so I've got hooked on programming an Atmel 128 and really enjoy the hardware side as well. Since mid to late '08 I've been slowly working away on a UAV helicopter with many ideas borrowed from vicacopter
Tell us a bit about your UAV interest
Interested in quads and helis mostly
Hometown:
Tokyo, Japan

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Randy's Blog

UAVs for measuring radiation levels in Japan

Posted on April 11, 2013 at 6:38pm 9 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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Dropping a Rover from a HexaCopter

Posted on February 11, 2013 at 8:48am 14 Comments

For those interested in using their multicopters to carry heavy objects you might be interested in the test that I performed today with Assistant Professor Nagatani-san of Tohoku university in Japan and Izu-san of…

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Hokuyo Laser Range Finder needs a home

Posted on December 25, 2012 at 9:32pm 18 Comments

I received a 2D laser range finder from the good people at Hokuyo more than 1 year ago.  My plan was to try to use it to improve ArduCopter's…

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Steps toward ESC feedback using SimonK

Posted on September 26, 2012 at 9:43pm 22 Comments

Most of the pro multicopter set-ups have feedback from the ESCs so the controller knows the status of the motors.  This is useful for all kinds of reason including:

    1. debugging the causes of crashes - the controller could log when a motor has stopped running.

    2. allows faster and better reaction to a motor failure perhaps saving you from a crash at least for…

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Comment Wall (16 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, 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, 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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