Gary McCray
  • Male
  • Fort Bragg, CA
  • United States

Gary McCray's Friends

  • dephiss
  • JerryCheung
  • Philip White
  • Iccobella Cheung
  • Miguel
  • Dangin
  • Sebastian Blaga
  • Eric Krasting
  • Arjun Jois
  • Jad Bouez
  • Robert Merki
  • Yutaca Sawai
  • Twing Kewl
  • Daniel Lachance

Gary McCray's Groups


Gary McCray's Page

Profile Information

About Me:

I am the Owner and Author of these advertising-free informative web sites:
Now flying, rolling or under construction:
  • Hoverthings FLIP FPV Pro Quadcopter with Pixhawk, 14" props, KDE 515kv motors, telemetry, Sony AS100V Video Camera, Brushlesss Gimbal and FPV.
  • Custom CF tube H/dead-cat Quadcopter with Pixhawk, GoPro, Gimbal & FPV.
  • Hoverthings FLIP Sport Quadcopter with PX4.
  • ARF DJI FlameWheel 330 Quadcopter with PX4.
  • ARF DJI Flamewheel 450 Quadcopter with APM 2.5.
  • Blade 200 QX, Hubsan X4 and Estes Nano Quadcopters.
  • My design: Hanging pendulum style robot with 2 brushless 26" bicycle wheels.
  • Traxxas Stampede 4x4 Rover with PX4.

Professional History:
  • (Retired) Microcomputer Engineer, Hardware and Firmware.
  • (Past) Lead Editor of DIYDrones APMcopter, APMplane and APMrover wikis.

Please tell us a bit about your UAV interest
  • Reentry into RC Planes 3 years ago.
  • Lots of PIC hardware and C and assembler programming experience.
  • Currently interested in Quadcopter development, robotics, 3D vision, environment relative autonomous navigation, Linux, Beagle Bone, Odroid, TOF cameras and LIDAR.

Mendota Illinois

Latest Activity

Gary McCray commented on Chris Anderson's blog post Amazing Stanford work on adding cinematic camera control to APM-powered drones
"Great Work, A really nice system, something that is sorely needed at every level of multicopter based video. Best Regards, Gary"
7 hours ago
Gary McCray replied to Thomas J Coyle III's discussion Your own Remotely Operated Vehicle (ROV) Project in the group ArduBoat User Group
"Hi Thomas, I am sure you are already aware of the Ancor heat shrink + adhesive Marine Heat activated self sealing crimp splices. It seems to me that you could splice the cables with those and then put a piece of heat shrink over the whole thing and…"
Gary McCray commented on MarioSpeedwagon's blog post More than meets the eye: a bit about caution and credibility
"Hi All, I greatly agree with the underlying thesis of this post, but to me the real problem appears to be getting solid meaningful data from the various sensors RGB or NDVI (or any valid spectral data for that matter). In Astronomy the use of color…"
Gary McCray commented on Monroe King's blog post Micro Drone of the Future
"One problem with Piezo is that it tends to be pretty inefficient, producing often more heat than motion. Still there are already examples of this actually being used, I think the trick is going to be to look beyond biomimicry to see what a top down…"
Gary McCray commented on Monroe King's blog post Micro Drone of the Future
"Hi Monroe, I agree, commercial use is really a secondary issue for these, but they would certainly fill the majority of needs/desires for non-commercial use as well. And Mario, +1, the perfect thing to toss a bunch of in a disaster area and set them…"
Gary McCray commented on Monroe King's blog post Micro Drone of the Future
"Hi Mario, I think the point of these tiny drones is not going to be able to handle a heavy payload but to tailor a tiny payload just for them. The fact is the biggest actual legitimate use for quadcopters is arguably to be able to take photos and…"
Gary McCray commented on Monroe King's blog post Micro Drone of the Future
"Comment by Gary McCray 9 seconds agoDelete Comment Hi Monroe and Chris, I totally agree with both of you. Tiny is totally important, and it is really, really hard. Economic incentive always plays to tiny for large scale production though,…"
Gary McCray commented on Roberto Navoni's blog post VR Brain 5 LX : The first flight of virtualrobotix Linux flight control with APM 3.3RC12 :)
"Congratulations Roberto, Look forward to full APM port. When do you expect this board to be available? Best, Gary"
Sep 25
Gary McCray commented on Laser Developer's blog post 100% saturated mapping for obstacle sense-and-avoid
"Hi LD, Excellent results, Looks like the data acquisition rate is really important and it is really good to know that an RPi2 can handle this data stream as well as it apparently does. Seems to be the basis of a simple but very capable obstacle…"
Sep 24
Gary McCray commented on David White's blog post Testing the new mapping plane, MAV79
"Hi David, That seems like an excellent airframe for a wide variety of missions. Certainly seems capable of holding a large payload. How is it in windy or gusty conditions? Best Regards, Gary"
Sep 20
Gary McCray commented on Chris Anderson's blog post Dronecode Foundation more than doubles to 42 company members
"And all this time I just thought the developers were just out on the weekends actually flying."
Sep 20
Gary McCray commented on Gotleg's blog post Drone configurator : simulate your drone configuration
"A great resource, I'm going to link to it on my QuadCoptersAreFun website. Do you think you could add the DJI Flamewheel F330 and F550. A lot of people still use those and their clones. The SK450 you show is pretty much the same as the DJI F450…"
Sep 20
Marcus Harrysson commented on Gary McCray's blog post Great deal on a 3 axis gimbal with Alexmos controller
"Im looking how to connect pitch and yaw to my RX so I can trim/tilt when needed.What do I connect and where, and are there any setting I need to edit for this? Thanks in advance :)"
Sep 20
Gary McCray commented on Chris Anderson's blog post Dronecode Foundation more than doubles to 42 company members
"Can't beliieve you bit on this one Rob, But I'll stick in my <2 cents too. No question all these Corporations benefit from both funded and unfunded innovation. But in a sense, here, that is part of the point. In the past copyright and…"
Sep 18
Gary McCray commented on Monroe King's blog post The future of the Micro Drone
"Hi Fnoop, There are a lot of tiny drones that are badly affected by wind, but that is not because they are small. It is because they have a large wind profile relative to their mass. There are also small drones for which this is not true. The Blade…"
Sep 17
Gary McCray commented on Monroe King's blog post The future of the Micro Drone
"Interestingly the Chinese already have the incentive, because smaller is also cheaper, cheaper to make, cheaper to ship and profitable at a lower price. That actually outweighs everything. So far we have been trying to include full sized sport…"
Sep 16

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Gary McCray's Blog

Great deal on a 3 axis gimbal with Alexmos controller

Posted on June 26, 2015 at 4:00pm 58 Comments

Just had to tell all of you about this $59.95 three axis gimbal deal on EBay:

This seemed like a great deal and looks to be identical to DYS Gimbal on Hobbyking which is $200.00.

I got one and quality appears excellent though I haven't tried to use it yet (I will probably get…


My thoughts on the state of affairs.

Posted on February 11, 2015 at 9:30pm 3 Comments

Recently a local radio station asked me to comment on an interview relating to the current status of "drones".

I am enclosing the letter I sent to them declining phone interview for the reasons specified, but putting my "opinions" in writing instead for them to use as the…


GoPro 4 is Here - Sort of!

Posted on September 29, 2014 at 10:30am 36 Comments

GoPro is finally announcing the new 4 Silver and Black:

It , of course has the new 30fps 4K and - not surprisingly costs $100.00 more than the last one so now $499.00.

Probably using the new Ambarella 9 chip, but no mention made of built in electronic image stabilization…


New 1 at a time ESC calibration method for PX4 or Pixhawk

Posted on June 28, 2014 at 2:47pm 4 Comments

One of the Problems with the PX4 / Pixhawk is that it uses a PPM-Sum receiver which when so configured may not work at all for the normal receiver based method of one at a time ESC programming.

And especially so for 4 in 1 ESCs.

The one at a time method I have developed uses the Wikis…


Comment Wall (4 comments)

At 8:14am on February 13, 2013, Jethro Hazelhurst said…

H Gary,

First off, thank you for the superb job on the F330 construction page and wiki table of contents.

I will Email you the Image so that you can put it where you see fit.

Many thanks again!


At 10:49pm on May 21, 2013, Jorge Antonio Saldaña Rosales said…

Hola que tal Gary sabes el hadware que necesito para hacer mi drone Cooperativo

At 5:17pm on May 22, 2013, Michael said…

Hi Gary,

Just a thing on shipping rates (from your comment). I was also mad because of high shipping. I sent support an email and they shipped the parts for free through standard mail! I got it in 2 days ( I live on the east coast). There is a size limit though, can't go above 13 oz, but for small parts its fine. Oh and btw, when you email them, ask for Lorena, it may take a day or 2 more because of her work hours, but she's been amazing with shipping like this.


Sorry this is the only way I could contact you!



At 3:35pm on March 26, 2015,
Thomas J Coyle III

Hi Gary,

Re: Fire Cape

I have been thinking about it, but have not decided to move on it yet.


Tom C

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