Adrien HADJ-SALAH
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Adrien HADJ-SALAH's Discussions

Quadcopter motors output

Started this discussion. Last reply by Adrien HADJ-SALAH Apr 12, 2015. 1 Reply

Hi everyone,I have looked the arducopter and multiwii codes but I can't find this information : how much amplitude you give to attitude control using the motors. I mean : if your motor signal…Continue

heterogeneous motors on quadcopter

Started Apr 9, 2015 0 Replies

Hi everyone,I build a project called Breeze which aims to develop an autopilot for UAV. Few months ago I change the code a bit to adapt the board to a quadcopter.My problem is that I have so far 3…Continue

What is the stall speed or minimum speed of the Skywalker X-8

Started this discussion. Last reply by Andrew Rabbitt Jan 2, 2015. 6 Replies

Hello everyone,I'm looking for X-8 users, Skywalker X-8, more than 2m wingpsan, I wanted to know if you have data about the minimum speed you were able to glide or stall speed. I read somewhere that…Continue

 

Adrien HADJ-SALAH's Page

Latest Activity

Walter Benitez commented on Adrien HADJ-SALAH's blog post Kalman filter parameter importance
"Hello Adrien, i´m Walter Benitez, and i am working in a project which is an autopilot too, with ATMega2560. I will like to ask you some question about your project. Currently i´m working on a system for the altitude hold and pos.…"
Jul 12, 2015
Adrien HADJ-SALAH posted a blog post

Kalman filter parameter importance

Hi everyone, I'm working on the BreezeUav project which is open-source autopilot for fixed-wing and multicopter. So far it's possible to fly by using the board we designed based on Atmega 2560 and we currently adapt the code to be executed on ARM Cortex soon. Anyway today I wanted to share with you some outputs I find by…See More
Jul 12, 2015
Adrien HADJ-SALAH replied to Anshul Sanamvenkata's discussion Mini Quadcopter PID problem
"Like I said your P value is too high try something like : 2"
Apr 12, 2015
Adrien HADJ-SALAH replied to Adrien HADJ-SALAH's discussion Quadcopter motors output
"I fand a solution by using a potentiometer on the Futaba radio to tune the PID controller. That way I fand good values."
Apr 12, 2015
Adrien HADJ-SALAH replied to Anshul Sanamvenkata's discussion Mini Quadcopter PID problem
"I guess your P parameter is too high.Very funny project by the way !"
Apr 12, 2015
Adrien HADJ-SALAH posted a discussion

Quadcopter motors output

Hi everyone,I have looked the arducopter and multiwii codes but I can't find this information : how much amplitude you give to attitude control using the motors. I mean : if your motor signal (motor_1) goes from 1000 to 2000, and you have an equation like this :motor_1 = ESC_MIN + thrustNeeded + pitchCmd * Amplitudewhere pitchCmd goes from 0 to 1 and ESC_MIN 1000. What is a good value of amplitude ?ThanksSee More
Apr 12, 2015
Adrien HADJ-SALAH posted a discussion

heterogeneous motors on quadcopter

Hi everyone,I build a project called Breeze which aims to develop an autopilot for UAV. Few months ago I change the code a bit to adapt the board to a quadcopter.My problem is that I have so far 3 identical motors and one other with a higher Kv and I'm trying to make it fly ...it's so hard to find a linear function to decrease the power of the motor which is different than the three others, but does anyone succeed to fly with heterogeneous motors ?Thanks :)AdrienSee More
Apr 9, 2015
Adrien HADJ-SALAH commented on Rhett "Wreck" Phillips's photo
Thumbnail

runway

"Very interesting plane, i like bi-motors actually, what's the weight of this plane ?"
Feb 26, 2015
Andrew Rabbitt replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"The maximum lift coefficient you can bet on for a flying wing would be around 0.7 or, if you're really good and throw all the fruit at it, you might stretch that to 0.75 in the real world. This is the archillles heel of the flying wing concept…"
Jan 2, 2015
Adrien HADJ-SALAH replied to Diarmuid Wrenne's discussion Xbee for full remote control
"Hi, I build the BreezeUAV project without radio system and now that the project become good enough to fly, I regret it. Firstable XBee are great, but sometime the communication is lost and my failsafe capability is not good enough.Secondly,…"
Dec 26, 2014
Adrien HADJ-SALAH commented on Víctor Mayoral's blog post Erle-brain, an open hardware Linux autopilot
"Hi, It's a very interesting project, firstable because such processor is more powerful than Atmega 2560.You said that it's possible to download sketch to produce our own board, I didn't find the link on your website ?Thanks a lot"
Dec 22, 2014
Adrien HADJ-SALAH replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"Thanks for your answers, maybe Cz = 1.0 is too strong for this model."
Dec 19, 2014

Moderator
Gary Mortimer replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"Keep pulling till a wing drops"
Dec 19, 2014
iskess replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"You can get slower than that with a few mods ;) http://diydrones.com/m/blogpost?id=705844%3ABlogPost%3A1413926"
Dec 18, 2014
Hans Miller replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"Nope, 6.4 m/s is not going to happen.  11m/s at 5kg."
Dec 18, 2014
iskess replied to Adrien HADJ-SALAH's discussion What is the stall speed or minimum speed of the Skywalker X-8
"My X8 stalled at about 10 m/s (36 kph) at about 3 Kg."
Dec 18, 2014

Profile Information

About Me:
I'm a french aeronautics and space engineer.
Please tell us a bit about your UAV interest
I started an UAV project few months ago and my goal is to create a nice and strong airplane with a powerful embedded system to achieve various missions.
Hometown:
PARIS

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Adrien HADJ-SALAH's Blog

Kalman filter parameter importance

Posted on July 12, 2015 at 11:19am 1 Comment

Hi everyone,



I'm working on the BreezeUav project which is open-source autopilot for fixed-wing and multicopter. So far it's possible to fly by using the board we designed based on Atmega 2560 and we currently adapt the code to be executed on ARM Cortex soon.



Anyway today I wanted…

Continue

BreezeUAV new flight : a crash but also some features tested

Posted on December 16, 2014 at 9:03am 0 Comments

Hi everyone,

Today I made a new flight using the BreezeUAV autopilot that I develop in open-source (breezeuav.com) :

It ended up with a crash due to motor vibrations leading to wrong roll evaluation. Actually I was aware of those vibrations, I thought the Kalman and Low-Pass filter will be enough to have good value. Without propeller I had 0.3G of…

Continue

BreezeUAV : An open-source autopilot for UAV

Posted on December 10, 2014 at 9:00am 4 Comments

Hi everyone,

I'm happy to share with you today BreezeUAV.



BreezeUAV is an autopilot running on Arduino Mega 2560 which allow the user to do some automatic missions or to fly in "semi-automatic" mode with a Joystick. In fact, instead of controlling the surface controls of the airplane, the joystick define the euler angles desired. Then the autopilot, using PID controllers, stabilize the UAV.



I first decide to implement the whole system on a Yak…

Continue

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