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Electnoics engineer with special interest in multirotor aircrafts


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Quadcopters!


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Ihab Ali replied to Randy's discussion ArduCopter 2.4 released
"Hey Guys,
just loaded the GIT 2.4.1 code in an attempt to trouble shoot the compass problem that was causing the slow yaw I observed yesterday on my initial 2.4.1 flight loaded from MP. I still have the same issue on MP Flight Data display: everytim…"
Feb 24, 2012
Ihab Ali replied to Randy's discussion ArduCopter 2.4 released
"Hey Guys,
I figured out my problem...had a couple of bad servo cables that were causing some sort of a short, as soon as I replaced them everything worked fine...sorry about the earlier post.
 
Now on to flying 2.4.1: All I can say is OMG!!!! I didn…"
Feb 23, 2012
Ihab Ali replied to Randy's discussion ArduCopter 2.4 released
"Hey Guys,
just loaded 2.4.1 from MP(twice actually)...something strange is going on: It does not see my receiver anymore(the blue light on the main board does not blink) and the ESCs keep beeping like there is no signal. Any idea what's going on?
 …"
Feb 23, 2012
Ihab Ali replied to Randy's discussion ArduCopter 2.4 released
"Hey guys,
Sorry to repeat the question again, but what's the final word on Loiter and Nav tuning in 2.4, do they still affect each other directly or can they now be tuned seperately?
 
 "
Feb 21, 2012
Ihab Ali replied to Chris Anderson's discussion ArduCopter 2.3 released
"Hello everybody,
Haven't had a chance to download yet as i'm still working on my heavy lift hex...what's the word on nav/loiter tuning? Is it the nav parametrs now or still the nav/loiter parameters in combination? I thought Marco's suggestion for a…"
Feb 20, 2012
Ihab Ali replied to r.v.bhanu praveen's discussion ARDUPILOT- in ArduCopter User Group
"The APM is all you need...it does both the stabilization as well as the autopilot/navigation functions as well(that is if you have the magnetometer and GPS attached to it)
 
 "
Feb 12, 2012
Ihab Ali commented on Ihab Ali's blog post Arducopter 2.3 tuning Stab_P for Nav video scenarios
"I see what you mean...however I don't think it's really unexpected given the nested control loop of engine power proportionality(the Stab_P) and the Rate of angle change(the Rate_P). Basically you can alter the feel of the copter by either changing…"
Feb 7, 2012
Ihab Ali commented on Ihab Ali's blog post Arducopter 2.3 tuning Stab_P for Nav video scenarios
"Hi Sanjaya,
My initial "soft" configuration was basically the same as you described except that with the default Stab_P rate I found that it's impossible to get rid of the fast oscillations without dropping the Rate_P value below .1(I had it set at…"
Feb 7, 2012
Ihab Ali commented on Ihab Ali's blog post Arducopter 2.3 tuning Stab_P for Nav video scenarios
"Nice y-6 Graham, what frame are you using?"
Feb 7, 2012
Ihab Ali commented on Ihab Ali's blog post Arducopter 2.3 tuning Stab_P for Nav video scenarios
"Hi Graham,
Yes absolutely and sorry I didn't include it to start with! Here are the last parameter sets used for this test.
 "
Feb 7, 2012
Ihab Ali replied to Chris Anderson's discussion ArduCopter 2.3 released
"I've just posted another video blog of tuning attempts...this time focused on Stab_P only. You can find the post at http://diydrones.com/profiles/blogs/arducopter-2-3-tuning-stab-p-fo.... Unfortunately I wasn't able to get any useful logs again toda…"
Feb 6, 2012
Ihab Ali posted a blog post
Hello again everybody,Round two of "organized testing"...today I decided to keep my Nav settings from last time(see previous blog post) and only play around with the Stab PID parameters to see what kind of effect they have on Loiter. I started off b…
Feb 6, 2012
Ihab Ali replied to Chris Anderson's discussion ArduCopter 2.3 released
"Arducopter 2.3 Nav tuning video scenarios
In order not to spam this thread anymore, I've posted some video experiments of my 3rd day of nav tuning with the 2.3 code. I hope this is useful to those like me who are basically new to the loiter/auto/nav…"
Feb 4, 2012
Ihab Ali posted a blog post
Hello,This is my first blog(and I mean first ever anywhere) so please excuse the lack of the "bloginess" quality :)I've been in testing mode with APM1 since the release of Arducopter 1 code. After a couple lost and crashed quads, I decided that my s…
Feb 4, 2012
Ihab Ali replied to Chris Anderson's discussion ArduCopter 2.3 released
"So any chance for some pointers on loiter/nav tuning before I go for day 3 of testing tomorrow? :)"
Feb 4, 2012
Ihab Ali replied to Chris Anderson's discussion ArduCopter 2.3 released
"And here's my param file
 
On a separate note, there is something seriously wrong with logging. My copter is producing something like 40 log enteries, all are empty except for 2-3(luckily the ones that actually had the GPS data) and that's after I s…"
Feb 3, 2012
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