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Hugues
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Hugues's Groups

Hugues's Discussions

What is the status of 3DR radios?

Started this discussion. Last reply by Art on Wednesday. 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 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

 

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 : www.airbotservices.com

Background:

◾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


MR60
Hugues replied to Forrest Frantz's discussion Mathematical Solution for Preventing a Fly-Away
"Actually if we could know precisely where the drone is, sacrificing speed measurement that would be a shrodinger solution to avoid flyaways. Problem arise if the drone can be simultaneously in different locations. Maybe are we missing some…"
6 hours ago

MR60
Hugues replied to Jake Kutrufis's discussion Onboard Image Processing (Find red disk in green field) in the group ArduCopter User Group
"I was just waiting for some reason to get an odroid xu4, this fun stuff could be it. But I was wondering if since the xu4 is already quite old (almost a year), isn't there a more powerful product now in similar size and price?"
6 hours ago

MR60
Hugues commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"I actually found my way with RTK to the kitchen and I'm having great pop corn right now. I certify it!"
7 hours ago

MR60
Hugues commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Kevin, Guy, don't feed "the troll" (he already stated in other posts US sets standards in all other countries...An old neo-conservative wet dream of supreme domination ?)"
8 hours ago

MR60
Hugues replied to Forrest Frantz's discussion Mathematical Solution for Preventing a Fly-Away
"About mutliple sensors, assuming the goal is to reject false measurements or failed sensors, the aviation industry just simply use a voting system allowing for two sensor failures, so 5 sensors required for each type: -1 (sensor failure) different…"
8 hours ago

MR60
Hugues replied to Forrest Frantz's discussion Mathematical Solution for Preventing a Fly-Away
"If I am not wrong, this is what EKF is doing: takes into account various sensors measurements, evaluate them against a predicted evolution, and if there is a too big deviation versus forecast, then ignores them or diminishes their weight in the PID…"
20 hours ago

MR60
Hugues commented on Chris Anderson's blog post Control a 3DR IRIS+ by voice with an Amazon Echo
"@Martin, yes indeed. As we say in french: what a gas factory!"
20 hours ago

MR60
Hugues commented on Jake Stew's blog post 915 MHz 3DR Radio Tuning With $7 SDR Spectrum Analyzer! Spectacular range boost!?
"I get a clear spike at 434Mhz (I am not sure I see the 600Hz thing, whatever it is). But then what should be the procedure after the 30 sec signal stops ? I suppose I should compare it to another reference signal to evaluate what the offset is but…"
yesterday

MR60
Hugues commented on Jake Stew's blog post 915 MHz 3DR Radio Tuning With $7 SDR Spectrum Analyzer! Spectacular range boost!?
"Thx Karol, that works. Now I would like to understand the procedure : -when I run ATJ, it emits a signal on the 434Mhz frequency for 30 sec (Jake says 600Hz, but what is that 600Hz ? is it 434, 600 Mhz ?) -Then it emits a pulsed signal : on what…"
yesterday

MR60
Hugues commented on Jake Stew's blog post 915 MHz 3DR Radio Tuning With $7 SDR Spectrum Analyzer! Spectacular range boost!?
"@Jake, Finally took some time to test your 434 tune firmware. I loaded it via mission planner to the radio. But then I can't get any reaction from AT commands. What is the baudrate you've set if any ? (tried putty and arduino serial…"
yesterday

MR60
Hugues commented on Hugues's blog post How-to guide: Pixhawk with 6S batteries (> 4S)
"AirbotPower board is now available: It is the optimum all in one solution to power your Pixhawk or other flight controller for ultimate power redundancy, safety and voltage/power measurements straight to Pixhawk's power…"
yesterday

MR60
Hugues commented on Duffy's blog post World's first hydrogen pellet drone flight
"Looks like great technology, but is proprietary unfortunately. So no detailed info available and no way to spread the technology into the DIY community. Let's wait for an "open source" version...."
Saturday

MR60
Hugues commented on Rana's blog post The most powerful RC + Telemetry system on the market "Ultimate LRS 2000mW, 433MHz"
"Yeah that's a great alternative, not only to 3DR radios but also a substitute (or backup) for your 2.4Ghz radio tx control link."
Saturday

MR60
Hugues commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"@Cala, sorry did not think that I would "put you in an oven" by speaking french lol. What an expression! @Kevin, what's the TCP function required for ? : I assume to connect to the rover via WiFi or TCP/IP via a router ? So…"
Saturday

MR60
Hugues commented on DROTEK's blog post Drotek releases first L1 RTK GNSS compatible with PixHawk (ArduPilot/PX4)
"Salut Drotek, Est-ce que la base est comprise dans le prix ?  La base est-elle identique au niveau hardware au rover ou quelles sont les differences ? Quel est le poids du rover tout compris ? Est-ce que les cables de raccordement du rover…"
Saturday
Christian Mauch commented on Hugues's blog post How-to guide: Pixhawk with 6S batteries (> 4S)
"Hi Davigb8... thanks a lot for the details. In that case I would recommend: 1x HS-200-HV Current sensor 1x 4-14S HYB-BEC / DF13-4p / 5.3V/3A Christian"
Saturday

Profile Information

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

Hugues's Blog

Pebble time smartwatch used to remote control your APM:copter

Posted on January 3, 2016 at 1:12pm 3 Comments

Hi,

The project's idea is to use my newly received (thx Santa) Pebble time smartwatch to send commands to a drone from your wrist, via a telemetry (mavlink). Accesorily, the objective is also to play with dronekit (mavlink communcation library) and SITL (APM vehicles/drones simulation tool).

As a summary, Pebble runs an HTTP client app to connect to an…

Continue

Build your own Antenna Tracking pan tilt system

Posted on November 8, 2015 at 6:08am 5 Comments

Hi,

Willing to try out APM antenna tracking, I needed to procure myself with a mechanical servo based pan-tilt system.

This video is both a build log and a kind of "how-to" antenna tracker build guide for those who want to try build their own.

I logically first started to look around to purchase one; my market research basically…

Continue

AirbotPower board

Posted on September 27, 2015 at 3:21am 17 Comments

Figure1 : AirbotPower board recto

Figure2 : AirbotPower board…

Continue

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:…

Continue

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.

Cheers,

Oliver

At 12:11am on March 20, 2013,
MR60
Hugues
said…

thx

At 12:52pm on November 7, 2013,
MR60
Forrest Frantz
said…

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…

Hello,

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)

Unrecognized?

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…

Hi,

/ / / / / / / 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!

Thanks.

At 8:11am on August 26, 2014,
MR60
Forrest Frantz
said…
At 1:45pm on December 15, 2014,
MR60
Forrest Frantz
said…

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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