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  • IronDOME
  • Brian Riskas
  • Jose Alberto Soler
  • Stijn Debecker
  • Kira Hu
  • Tony K
  • Kode sai susheel praneeth
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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 Ben Dellar's discussion Alternative noses for the Talon (3D Printed) in the group X-UAV Talon
Nov 17
MultiR- Concept commented on Hugues's blog post Quadcopter folding frame design - Part2
"just using similar design folding arm on my own quad for 5 years now..."
Nov 15

Hugues commented on Jose.L.Jr's blog post DIY Air Data Computer Asgard
"Hello, what is the functionality and objective of "Asgard data computer"? visited the project web site but aprt from a total assembly cost of 160 dollars and lots of  technical schèmes,  could not find an overview…"
Nov 12

Hugues commented on Aero Hawk's blog post A Drone by Aero-hawk so cleverly named the Field Hawk
"This is extremely light for the size, good job with the design. I'm surprised you can achieve such low weight using 3D printed parts that are much heavier than what you could achieve with nomex/carbon/balsa frames. What plastic do you use ?"
Nov 9

Hugues replied to John's discussion Best flight controller for ariel photography
"Best flight controller is Ardupilot running on any compatible hardware, no doubts (you have a very large choice of flight controllers' hardware that run Ardupilot such as Pixhawk, Pixracer, Edge, Pixhawk2, CUAV, etc)."
Nov 7

Hugues commented on Aero Hawk's blog post A Drone by Aero-hawk so cleverly named the Field Hawk
"What are the technical specs of the drone ? (not indicated on your web site either) such info as motors, propeller size, battery model/size, etc Also the indicated weight of 12lb seems excessive in comparison of the overall dimension of…"
Nov 7
Ravi commented on Hugues's blog post Make your own Li-Ion battery pack
"needless to say Li-Ion 18650GA cells give excellent performance."
Nov 5
Ravi commented on Hugues's blog post Make your own Li-Ion battery pack
"I had been using custom Li-Ion packs. when I used nickel strips for connections the strip would get hot and the voltage drops by 0.5V per pack or something and also the junction  heats up a little. I use good quality 18AWG wire stripped form…"
Nov 5
Tom commented on Hugues's blog post Make your own Li-Ion battery pack
"Second, i get my cells also from them. They offer fair priced genuine cells and even add solder tags if you want. Btw. i uploaded the case on thingiverse."
Nov 5

Hugues commented on Hugues's blog post Make your own Li-Ion battery pack
"I got the cells at Yes my iron does not have enough heat capacity for that job. TIG/Spot solder is the way to go."
Nov 5
Bart Theys commented on Hugues's blog post Make your own Li-Ion battery pack
"Where did you buy the cells? Looks like the solder is not flowing very happily :) . If a stronger soldering iron doesn't work you can try sanding the spots you wish to solder with a fine grain sandpaper first, this works good for me. "
Nov 3

Hugues commented on Hugues's blog post Make your own Li-Ion battery pack
"Oh great link to a diy spot welder, very nifty, thx"
Nov 1

Hugues commented on Hugues's blog post Make your own Li-Ion battery pack
"Tom, thx. Cool link to this 3D printed case."
Nov 1
Tom commented on Hugues's blog post Make your own Li-Ion battery pack
"@Hugues, thanks for sharing i also built some smaller packs (mostly 2S for equipement) and use a 3D printed Case for protection. if i would build a lot more packs i would buy the "Boss Spot Welder" Also the 3D printed snap in cases…"
Oct 31

Hugues commented on Hugues's blog post Make your own Li-Ion battery pack
"@Jon, at 400 degrees Celsius. But if I had to suggest an improvement, it would be to use a more massive iron, maybe at lower temp, because my solder iron was barely able to solder quickly on these. @Jonathan,Yes I lost 46g on cover!"
Oct 30
Johnatan commented on Hugues's blog post Make your own Li-Ion battery pack
"The final cover weights a lot! Also welding is better approach."
Oct 30

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Please tell us a bit about your UAV interest
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Hugues's Blog

Make your own Li-Ion battery pack

Posted on October 29, 2017 at 11:40am 11 Comments

Hi guys,

Did you know you could build your own Li-Ion battery pack ?

Li-Ion batteries have the highest energy density per unit of mass available to us.

In comparison with LiPo batteries, you get 30% less weight for the same mAh capacity, which translates into direct endurance or increased flight autonomy.

Ready made…


Quadcopter folding frame design - Part2

Posted on September 3, 2017 at 7:30am 4 Comments

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:…


DIY design & build of a foldable 300 class quadcopter (9" props)

Posted on July 31, 2017 at 9:00am 2 Comments


Here is a DIY design & build of a small  (300 class, 9" props) compact foldable  quadcopter you can take in a backpack, weighing less than a kilogram (including a Drotek RTK GPS, CUAV V3 pro pixhawk autopilot , telemetry radio)

It can fly a good 30 minutes with a 3-axis Gopro type gimbal (subject of part2). The frame is…


A little laugh - DIY Chickens

Posted on July 15, 2017 at 12:16pm 9 Comments

A little laugh with a joke  starring my chickens, Penny and Pepsi :)

 Oh yes, even chickens may benefit from Arduino tech.

Next step : make ardurover find the path to the chickens house, then recognize if eggs are layed and pick up them up Can DEVs take care of that in a next release ? :)

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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