• Male
  • Brussels
  • Belgium

Hugues's Friends

  • isfandyar01
  • CMΞC
  • Chris
  • DavidLee
  • Santiago E
  • IronDOME
  • Brian Riskas
  • Jose Alberto Soler
  • Stijn Debecker
  • Kira Hu
  • Tony K
  • Kode sai susheel praneeth
  • drone hacker
  • David Torres
  • Sven Hoffmann

Hugues's Groups

Hugues's Discussions

How to use SITL simulated vehicle to test a real antenna tracker ?

Started this discussion. Last reply by Jakub Oller May 16, 2016. 4 Replies

Hello,I would like to test a real antenna tracker, driven by a Pixhawk and the antenna tracker firmware,  which is setup "in the middle" : on one side the antenna tracker is linked via 3DR radio to the vehicle, on the other side, it is linked to a…Continue

What is the status of 3DR radios?

Started this discussion. Last reply by Art Feb 3, 2016. 5 Replies

A user reported on this forum a 3DR representative announcing 3DR is stopping the 433 and 915 radios. I assume this is incorrect information or is it? Can a 3DR official give the real status?If 3DR really stops the radios, what could be reliable…Continue

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

Started this discussion. Last reply by iskess Jul 28, 2015. 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 Jim Kahmann Jun 13, 2016. 6 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


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 replied to jbabio's discussion Current sensing (safely) for Heavy Octo?
"I designed with Nick Arsov and sell a hall effect current sensor (up to 200A), up to 8S"
Oct 12, 2017

Hugues commented on Kirill's blog post Introducing SmartAP MAX
"Too bad you do not open your hardware to run Ardupilot, you could make a fortune...Nobody wants a proprietary autopilot which brings only constraints, limitations and licensing issues."
Sep 29, 2017
János Mészáros commented on Hugues's blog post Quadcopter folding frame design - Part2
"Thanks, Hugues. If this build will successful, I'll write a blog post here on DIYDrones."
Sep 6, 2017

Hugues commented on Hugues's blog post Quadcopter folding frame design - Part2
"Hello Janos, thx. You can copy the design, that is the DIY open source spirit."
Sep 4, 2017
János Mészáros commented on Hugues's blog post Quadcopter folding frame design - Part2
"Hugues, your folding and frame design is superb. Is it patented? Can I use it some parts or methods for my current build?"
Sep 4, 2017

Hugues posted a blog post

Quadcopter folding frame design - Part2

Hi Guys,This is part 2 of building a DIY  folding quadcopter. The episode is about designing a detachable camera gimbal (a Z Tiny2, 3-axis) and a landing gear. Part 1 is here:Cheers,HuguesSee More
Sep 3, 2017

Hugues replied to Duffy's discussion Just another 5 hour endurance full electric VTOL
"Hi, Can you please provide some basic specs about the ship: -Total weight ? -Wingspan ? -Motors/ESC used for VTOL ? -Internal payload bay dimensions ? -Any traps/opening for camera pointing downward ? Can camera openings be customized ? thx"
Sep 3, 2017
Andrea Figiani commented on Hugues's blog post How-to guide: Pixhawk auto camera trigger (without CHDK)
"Mine experience : I tried to use this object from HK /5v-remotely-adjustable-light-controller-for-led.html&nbsp;</p> and it work perfectly  . and is very cheap just  5.89€ bye"
Aug 17, 2017
Martin GW commented on Hugues's blog post How-to guide: Pixhawk auto camera trigger (without CHDK)
"where on earth is the CH7_OPT parameter?Im using a plane and the full parameter list shows no such an option."
Aug 4, 2017
Bart Theys commented on Hugues's blog post DIY design & build of a foldable 300 class quadcopter (9" props)
"Very nice! Is this for personal use/fun or did you make it especially for some application?"
Aug 2, 2017
Pascal P. commented on Hugues's blog post DIY design & build of a foldable 300 class quadcopter (9" props)
"Well done Hugues, your builds are always neat ! Could you detail your motor / esc / battery config to get 30' ?"
Aug 1, 2017

Hugues posted blog posts
Jul 31, 2017

Hugues commented on jlcortex's blog post Searching for heavy duty applications for HYBRiX20
"About drone markets, I believe there is no future for selling hardware anymore for small businesses. Because of multiple reasons: -It is already too late ! the spot has been taken by giant corporations with, relatively to small…"
Jul 29, 2017
Cala commented on Hugues's blog post A little laugh - DIY Chickens
"Temp and humidity control for chikens house??? :O . Can I rent their house when I travel to Europe? LoL"
Jul 20, 2017

Hugues commented on hiroshi takey's blog post [URUS TEST] - First test Urus Protocol
"@Marc thx for trying but still don't get what is the functional objective of this and indeed a clear summary for non low level dev would be useful for all."
Jul 18, 2017

Hugues replied to Michael Dornisch's discussion Battery Monitor Works on Pixhawk 1 but not Pixhawk 2 Cube
"Maybe it is a similar issue I found where in fact, after any change in mission planner in that current monitor window, you actually need to reboot the pixhawk board and reconnect mission planner to see the changes. Have you tried that ?"
Jul 18, 2017

Profile Information

Please tell us a bit about your UAV interest
All UAVs topics

Hugues's Blog

3" Arducopter PID tuning

Posted on March 23, 2019 at 11:31am 1 Comment

Maiden flight and PID tuning of a 3" microquad (Arducopter)


Test & Review of the portable TS100 soldering iron

Posted on May 13, 2018 at 6:11am 0 Comments


This is a practical test & review of the TS100 portable solder iron, where we check if it is up to the job for our diydrones hobby's uses...



Flight endurance test with a Li-ion battery

Posted on April 15, 2018 at 10:00am 2 Comments

We test fly a 4S3P battery (build video here : ) on the sub-kilogram Ardupilot folding drone (build video here: )

Li-Ion battery cells are 18650GA cells (3400 mAh) able to provide 10A current…


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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