John OBrien
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  • Scottsdale, AZ
  • United States
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Fishtailing / Wobbling in Auto mode and Circle mode

Started Dec 24, 2013 0 Replies

I recently purchase an APM 2.6 with external compass and GPS.  I programmed a simple route that is very short in distance - just rotates around my ground position twice using about 9 way points.  On…Continue

Help - FatShark 600TVL CMOS camera - MinimOSD problem

Started this discussion. Last reply by Steven Cheatham Nov 23, 2013. 2 Replies

Anyone had a problem with this camera, where the video signal comes through without the digital overlay?  But then when I jiggle the camera - I have no video signal but I CAN see the digital readout…Continue

APM Auto Mode Failure - Please Help

Started this discussion. Last reply by John OBrien Aug 25, 2013. 6 Replies

I was out today flying in Manual, Stabilize, RTL and Auto mode today and evertything started out OK.  The Auto mission had 7 way points and a home location.  The altitude of each way point is 100…Continue

MinimOSD Current Readings wrong - Please help

Started this discussion. Last reply by John OBrien May 17, 2013. 3 Replies

I have APM 2.5, MinimOSD 1.1, Fatshark transmitter with a low pass filter for the battery connection.  I configured the placement of gauges to my liking and they are showing up correctly.  I'm…Continue

Tags: MinimOSD, OSD

 

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Latest Activity

John OBrien posted a discussion

Fishtailing / Wobbling in Auto mode and Circle mode

I recently purchase an APM 2.6 with external compass and GPS.  I programmed a simple route that is very short in distance - just rotates around my ground position twice using about 9 way points.  On the ground, stabilize mode works correctly as I rotate the plane around.  Switch back to manual take off and everything is fine.  When I switch to auto mode, I can hear the motor speed vary and the plane wobbles through the air as though the ailerons are fluttering.   I uploaded the log file to:…See More
Dec 24, 2013
Steven Cheatham replied to John OBrien's discussion Help - FatShark 600TVL CMOS camera - MinimOSD problem
"I struggled with exact same problem for two days.  I have the FatShark 600TVL with the ImmersionRC 600 mW 5.8 Ghz and the MinimOSD.  Same wiring 5v from fatshark to camera.  12v powering both the ImmersionRC and the MinimOSD.  I…"
Nov 23, 2013
John OBrien commented on Gisela & Joe Noci's blog post Pre Flight check List of system Integrity
"Could you provide the doc file in PDF format?"
Oct 6, 2013
John OBrien commented on Bill Bonney's blog post Welcome to Taranis!
"Bill, you've helped me troubleshoot problems with other R/C issues in the past. I look forward to your posts on this transmitter. One request, please be brutally honest about this radio"
Oct 3, 2013
John OBrien commented on Stefan Gofferje's blog post The end for volunteer rescue services' use of Micro UAVs in Europe!
"Your suggestion to get active is the best course of action. Residents of Eu countries, one of your brethren is asking you to help - support him!"
Oct 3, 2013
John OBrien replied to John OBrien's discussion Help - FatShark 600TVL CMOS camera - MinimOSD problem
"Nevermind.   My setting on the minimOSD was NTSC and the switch on the camera was PAL.  Once I switched the camera to NTSC - the problem was solved."
Sep 5, 2013
John OBrien posted a discussion

Help - FatShark 600TVL CMOS camera - MinimOSD problem

Anyone had a problem with this camera, where the video signal comes through without the digital overlay?  But then when I jiggle the camera - I have no video signal but I CAN see the digital readout of the OSD.  Problem is I can't get both the digital overlay and the video signal at the same time.  Please respond if you have had this problem or you have an idea on how to fix it.   Thanks in advance for your help.The camera has 3 pin connections video, ground and 5v pwr.  The video  V/Tx is…See More
Sep 5, 2013
John OBrien replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"Thanks Bill.  I thought I had set WP 7 to RTL, ash I look at the MP GUI interface - that seems like what was displayed.  Only thing I can think of is that I have used the same name for that mission and when I updated WP 7 to RTL - it did…"
Aug 25, 2013

Developer
Bill Bonney replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"Waypoint 6 and 7 where on top of each other. Waypoint 7 was not RTL. All I have been able to deduce so far, as soon as you hit waypoint 7, the motors cut and the plane stalled. It was the end of the mission."
Aug 25, 2013
John OBrien replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"My Bixler parameter file, which is loaded, reads:  ALT_HOLD_RTL,5000 "
Aug 25, 2013
Søren Kuula replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"Hi, What's your ALT_HOLD_RTL parameter value?"
Aug 25, 2013
John OBrien replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"Marcelo,   Yes the 6th WP was defined as a regular WP.  It should have just been a WP between 5 and 7."
Aug 24, 2013
ECODRONES replied to John OBrien's discussion APM Auto Mode Failure - Please Help
"Strange!Was the 6th regular WP also?I uploaded here of the your tracking log: http://www.droneshare.com/view/bmeabx7Just to analyse it."
Aug 24, 2013
John OBrien posted a discussion

APM Auto Mode Failure - Please Help

I was out today flying in Manual, Stabilize, RTL and Auto mode today and evertything started out OK.  The Auto mission had 7 way points and a home location.  The altitude of each way point is 100 meters.  I started out in manual and when I reached about 40 meters in height, I switched from manual to auto mode.  The mission was proceeding according to planning until arriving at way point 6, then the plane throttled down and was headed for a crash.  I flipped to manual and between that and RTL…See More
Aug 24, 2013
John OBrien replied to John OBrien's discussion MinimOSD Current Readings wrong - Please help
"Is there any danger in setting the voltage above 5.0 V via APM?   My first attempt I set the voltage at 5.0 and the readings seemed slightly low (11.4 v vs. 12 v on a multimeter when I viewed them via the MinimOSD.  So I upped the…"
May 17, 2013
John OBrien replied to John OBrien's discussion MinimOSD Current Readings wrong - Please help
"Thanks for the quick response.   I need to order the power module as it wasn't available when I ordered my APM 2.5.  That seems like the easiest solution of the two alternatives."
May 14, 2013

Profile Information

About Me:
Middle Manager of Data services at a major retail company
Please tell us a bit about your UAV interest
Just starting this journey
Hometown:
Phoenix, Az

John OBrien's Blog

Another article about peaceful use of drone technology in the NY Times

Posted on March 19, 2013 at 12:53pm 3 Comments

Seems as though the ratio of articles about peaceful, productive use of UAS technology to fearful, war themed, police state articles is running about 1 to 10.   This one takes the time to interview people that have ideas about using them for good purposes.…

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99 cent Ublox Container

Posted on December 26, 2012 at 11:06pm 3 Comments

Found a neat little plastic box at "The Container Store" for 99 cents.  Fits the UBlox LEA 6H in width and height perfectly.  May need to stuff a foam spacer on the length wise side.  Just tried it in the backyard and the GPS got a fix in about 30 seconds - the plastic cover is not adversely affecting the…

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Finally Got the maiden flight of APM 2.5+ done

Posted on December 24, 2012 at 4:30pm 6 Comments

I waited until I was able to get the Bixler Chassis installed before I went out on a flight with my APM 2.5+.  Once I turned it on, the uBlox got position really fast.  It was really windy today.  I took off in manual mode, flipped the switch to "Stabilize" and it leveled off like a champ.   I alternated between Manual and Stabilize for a while, then I switched to RTL and it performed perfectly!  Really glad I got the Chassis, because it made attaining the CG super simple. …

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