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  • Za Pf
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  • Robert Giordano
  • Keith M
  • camilo salazar
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Hugues's Groups

Hugues's Discussions

AirbotServices's light 45gr Mobius 2 axis gimbal+vibrations tests

Started this discussion. Last reply by iskess Jul 28. 4 Replies

Finally found a bit of time to test the light 45gr 2 axis brushless gimbal we built for the Mobius camera,PS for Cala : better late than never ;)Continue

Tags: lightest, gimbal, Brushless, camera, Mobius

How to configure CAM_TRIG_DIST to ouput a PWM signal from a Pixhawk output ?

Started this discussion. Last reply by Hugues Mar 4, 2014. 5 Replies

Hi,I would lile to use the Survey function in mission planner which uses the CAM_TRIG_DIST method to trigger a camera at regular distance intervals.I'm using an infrared camera trigger which is activated by a PWM signal (configurable).The question…Continue

Is Minimosd incompatible with Sony NEX5R ?

Started this discussion. Last reply by Hugues Jan 7, 2014. 17 Replies

Hello,I'm trying to use my Sony NEX5 camera as a FPV camera using this HDMI AV converter :…Continue

NEVER connect a Capacitor backup or voltage protector on APM board

Started this discussion. Last reply by Hugues Nov 19, 2013. 71 Replies

Hi,Edit : from the posts below I deduce the issue seems specific to my config. Threfore I remove temporarily my request to add a line a caution in the wiki as it might not be a general problem for everyone, until further investigation and…Continue

[PROBLEM] Mission planner updater error

Started this discussion. Last reply by dudz Apr 17, 2013. 5 Replies

Hi,I launched today the mission planner that started an auto update. It starts downloading files updates (as visible in the console window) but after 2 minutes it stops with error, giving this display and error message:…Continue

LEDs use on APM2.5 board

Started this discussion. Last reply by TJ Feb 2, 2013. 1 Reply

Hello,I have seen a picture in the Wiki for the 2.0 APM board showing ouputs A9 to A4 being named "Motor LEDs".Is there any explanation what that is and how is it used ?For example can those outputs be used to power 12Volts LED strips ? (or is it…Continue

Programming with Arducopter/Arduino

Started this discussion. Last reply by duster3 May 6, 2013. 15 Replies

Hello,I would like to compile and upload the Arducopter code to my UAV. To do so I followed the instructions on the wiki, that is :-installed the Arduino 1.0.3 (Arudpilot) version on win7-installed the 2.8.1 software version (the two folders…Continue

Tags: Arducopter, Arduino, Programming

Sonar minimum distance ?

Started this discussion. Last reply by Leif Hedman Jan 9, 2013. 2 Replies

Hello,I have installed the sonar XLL-EZ0 on the quadcopter (3DR). Then I launch a sonar test though the CLI in the mission planner software. The arducopter is connected via USB only (no battery).The minimum reading with the sonar command is 20 cm.…Continue

Tags: EZ0, 3DR, Sonar

Power for analog pins (servos for roll/tilt, sonar, etc)

Started this discussion. Last reply by Hugues Dec 28, 2012. 3 Replies

Hi,On a 3DR quad arducopter, I am powering the APM2.5 with JP1 off and using the 5v input from the 3DR power module BEC (connects through the voltage measurement port).This powers , If I understood correctly, all of the APM2.5 boards including the…Continue

Tags: power, module, 3DR, servos, pins


Hugues's Page

◾ About Me:

◾I'm the founder of AirbotServices that provides UAV expertise and services for professionnals. We aim more particularly at serving the agriculture, real estate and industrial sectors.
Web site :


◾Engineer - Ecole Polytechnique of Brussels (ULB), specialization in Telecom & Electronics
◾MBA - Solvay Business School (ULB).

Please tell us a bit about your UAV interest:
◾I dove into the subject a few years ago when I was searching how to upgrade a very bad camera on my 8 years old son's remote controlled helicopter.
◾I found the diydrones community on the basis of which I built up this passion.
◾Contributing Blogger and Editor of DIYDrones APMcopter and APMplane wikis.
◾Currently developing AirbotServices products and services.

Latest Activity

Hugues commented on Daniel McKinnon's blog post Would you like to capture professional quality photos with Solo? Do you like Rube-Goldberg machines?
"Nice contraption! What is the trigger lag you get to take a picture? How much delay between two pictures? I tried and dropped an experiment based on a Sony qx10, unusable for its lag and huge delay between pictures. "
18 hours ago

Hugues replied to Pavel's discussion Is it possible to cover APM with aluminum foil to minimize UHF noise interference? in the group ArduPlane User Group
"using aluminium material to try to block EMI from a component is not the best : aluminium is very reflective and absorbs very little the EMI : the EMI will bounce all over against the Al and will find a way out. Better material that absorbs better…"
Jason Wise commented on Hugues's blog post AirbotPower board
"Wow love the product just cannot justify out fitting my large multi-rotors vs the cost $160 NZD each ex shipping :(:("

Hugues commented on Chris Anderson's blog post Army researchers testing swarms of APM-powered drones
"And this will fuel uav adversaries with a bit more paranoia who will now expect swarms of military drones to attack or spy on civilians..."

Hugues commented on Chris Anderson's blog post Army researchers testing swarms of APM-powered drones
"+1 I think such a post does not serve our community to give it a positive image with useful and peaceful applications. We already have a hard time enough without that to defend the usefulness and safety of uav applications."
Lloyd Eden commented on Hugues's blog post AirbotPower board
"Hello Hugues, could you tell us what are the size of the batteries connector on the AirbotPower, and would you sell a CAP module for the batteries as well? Your product is expensive but the possibilities to remove the AirbotPower from one…"
Nick McCarthy commented on Hugues's blog post AirbotPower board
"This is excellent work and a timely product for a new 6S multirotor I'm building. "
Sep 30

Hugues commented on Randy's blog post Copter-3.3 ready for wider use
"What a confusing discussion between devs and P2P about estop, interlock, throttle scenarios, etc. Could a knowledgeable person (I guess one of the dev) publish a mind map of all cases and resulting behaviour of 3.3 firmware? That would be of immense…"
Sep 30

Hugues commented on Hugues's blog post AirbotPower board
"@Hein, yes that should work. nerver tested it though. @James, what you see is not two stacked parallel boards. You see the PDB stacked on AirbotPower. The hard limit is due to the current measurement chip (150A)."
Sep 30

Hein du Plessis commented on Hugues's blog post AirbotPower board
"Thanks @Hugues, so you're saying I can use a traditional current sensor and just use this board for redundant power to my servos and autopilot?"
Sep 30
James Dunthorne commented on Hugues's blog post AirbotPower board
"I see you can stack the boards in parallel. Does this mean that you could essentially do 300A using 2 boards in parallel? i.e. 150A per board"
Sep 30

Hugues commented on Hugues's blog post AirbotPower board
"@Hein, in fact teh only limit for 8S on the board is the voltage divider. All other components, are 10S ok. @Lars, Thx. I'm also hoping I can start production soon... @James, thx for your feedback. 300A is huge and the issue is finding…"
Sep 29

Marco Robustini commented on Hugues's blog post AirbotPower board
"Really nice product dear Hugues!"
Sep 28
Aaron Curtis commented on Hugues's blog post AirbotPower board
"Fantastic, addresses most of the power module need that has been inexplicably unfulfilled for so many years! Just had a thought, though -- would be really great if you can make a version of this with a power switch. I know we're all used to it,…"
Sep 28
Elios commented on Hugues's blog post AirbotPower board
"HI Hugues,  Great work, we use High Voltage 4S Lipo in our fixed wings planes, does your board support it? "
Sep 28
James Dunthorne commented on Hugues's blog post AirbotPower board
"Great product...unfortunately you have released this about 5 days too late for me! Spent most of last week sourcing and soldering Zener Diodes, capacitors etc. With my setup, i can now handle up to 360A by using a 180A attopilot on each battery…"
Sep 28

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Hugues's Blog

AirbotPower board

Posted on September 27, 2015 at 3:21am 16 Comments

Figure1 : AirbotPower board recto

Figure2 : AirbotPower board…


Week-end DIY build project: 6S powered Pixhawk 900 mm quadcopter, experimenting with 3D printing.

Posted on August 9, 2015 at 12:40pm 13 Comments

Here a typical week-end "dronegeek" DIY build project : expermenting with 3D printing to make a 900mm Pixhawk quadcopter, with 380Kv motors, 16" props and powered by 6S batteries.

Credits for the frame : do not forget this excellent post from Forrest Frantz on light frame construction techniques:…


AirbotServices Pixhawk/APM:plane 3.3 XUAV Talon training session

Posted on July 10, 2015 at 1:57pm 9 Comments


If you ever wondered what professional drone designers/makers are doing behind the scenes, well we're not only building UAVs for customers but we also have to train them from A to Z (and often we have to train ourselves too:).

To show you how this is made, enjoy this little video of this morning's training session (for agronomy…


Comment Wall (11 comments)

At 10:26pm on March 19, 2013, Oliver said…

Hi, I just posted the parts list with some notes in the comments below my original post on the gimbal.



At 12:11am on March 20, 2013,


At 12:52pm on November 7, 2013,
Forrest Frantz

Didn't want to say this in the crowd.  But I think mass distribution has a bearing on the PIDs as does distance from the respective axis.

Example:  Say there is a rectangular cubic battery pointing fore and aft at CG on a symmetric quad copter.  Say the rotors are 20 cm from their axis and the battery is 10cm x 2 cm.

o The torque factor exerted in pitch over the battery would be 20/(10/4) = 8 to 1

o The torque factor exerted in roll over the battery would be 20/(2/4) = 40 to 1

If you have two steel wheels of the same mass, the larger one will be more difficult to get rolling (there is a larger change in momentum).

So it is 5x easier to roll than pitch.  I think that should be accounted for in the PIDs?  But maybe I'm wrong.

Of course this is an extreme example where everything else weighs nothing, so the differences in ratios are never that high.  But it is common I think for the factors to be up to 1.5X.

Your thoughts?

At 1:42pm on November 8, 2013, Tyler McGahee said…

Yeah, the PIDs are definitely affected by the "mass distribution" (moment of inertia), as well as by the motors and propellers and ESCs and the control algorithm and on and on. I don't think it hurts to list the PIDs though. Could save some time when starting from scratch on a similar or identical rig.

At 10:37pm on November 21, 2013, HobbyColombia said…


A curiosity ... as I turn apm 2.5 and esc with 2 separate batteries.

Battery 1: APM 2.5 and FPV
Battery 2 Engines - BECS (servos)


Thank you!

At 7:28pm on March 11, 2014, HobbyColombia said…

Ardupilot on PX4 + IO won't arm motors.

Hi I have the same problem Mystery 30A ESC's ...

You Might explain "load up the firmware ArduCopter" Bootload firmware?

System works without problem, arm and disarm perfectly.

Safety Switch OK.

Calibration OK, ENGINES TURN.

Connect and disconnect battery and ESC sounds uncalibrated, not save settings.

/ / / / / / / Can not save the ESC Mystery Calibration and PX4FMUIO / / / /

At 1:11pm on March 12, 2014, HobbyColombia said…


/ / / / / / / Can not save the ESC Calibration in PX4 FMU IO / / / /

You know it could be?

Another question.

You know how I connect to OSD Remzibi px4 as if telemetry data and to see video on my monitor?

We appreciate evidence.

Thanks for you time.

You are responsible to give answers of diydrones community? curiosity!


At 8:11am on August 26, 2014,
Forrest Frantz
At 1:45pm on December 15, 2014,
Forrest Frantz

4 motor mounts and 4 tube plugs, cut, lightly sanded, ready to ship, and after you clean, ready to adhere.

Where do you want me to send them?

At 9:25am on August 18, 2015, Rafael Fontela said…

Saw an old post from 2013 title Tiger motors-propellers combinations for an heavy lift octocopter, where after testing several motors props combinations you chose the Tiger 3510 360Kv.

I'm trying to upgrade my 3dr x8+ to be able to extent the flying time while increasing the payload to be able to use about 1200 extra grams for camera equipment etc.  At present my drone is equipped with the motors and props that come from 3DR ( SUNNYSKY V2216-16 KV800) and by them the drone will be able to lift 800 grm while having a fly time of 15 mnts (by what I have read more like 10).

I was wandering if you think that using the Tigers and the props combination I could achieve the results you had, also whether

I could run the 6s batteries.

Thanks so much for your time


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