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#16 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 10:51:14
von Crizz
Fabian verschickt die für 75.- incl. Versand. Da kann man nicht meckern. Bei den anderen üblichen Verdächtigen bezahlt man für ne 9DOF-IMU immerhin knappe 100.- zzgl. Versand, und bei Fabian weiß ich das die IMU ab WMC 1.6 eingebunden ist.
Soll in 3 - 4 Tagen hier sein, er schickt sie heute raus.
#17 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 11:56:09
von fax8
Hi guys, I'm Fabio the creator of FreeIMU, I've seen my project is being discussed here.. sorry, I can't read German, but if you guys have any questions on FreeIMU I'll be happy to answer (please, post in English). For all the informations on FreeIMU you can visit
http://www.varesano.net/projects/hardware/FreeIMU . Thanks!
Fabio
#18 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 13:20:03
von Crizz
Hi Fabio, be welcome !
Great thing what you developed, i´m already very excited bout my FreeIMU. Will post more here when it arrived and in use on my Copter

#19 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 16:50:10
von speedy
Hi Fabio,
nice to see you here. I'm the guy with the first two delivered Femto's.
speedy
#20 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 16:53:16
von fax8
Hey! How are they working?
#21 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 22.03.2011 20:32:41
von speedy
I played a little bit with this boards and they works.

But I still can't use it for my quadrocopter because I still waiting for parts from HongKong.
speedy
#22 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 27.03.2011 10:51:24
von fax8
@Crizz, I've seen in another thread that you received your FreeIMU.
You can test it using the Arduino FreeIMU library at
http://www.varesano.net/projects/hardwa ... MU#library
@speedy, keep me posted on your progresses with the Femto..

#23 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 27.03.2011 13:30:19
von Crizz
yep, it arrived yesterday
Built it in my copter this morning and had first testing. Was horrible, very "kinky" behavior. At this ppint, i had used the same tape i did with the WMP - a very strong and rigid ones.
So i changed it for a very soft one, and now it´s very stable - much better than with WMP , Autolevel is much more accurate than Nunchuk ever did.
Only prob is that my EDFs are starting to go loco after 60 sec. of flight, guess the 20A HK-ESC doesn´t love the trigger frequency and go nuts. Can´t be an overload problem, max. current is 18 A per each.
So will check with other ESC ( Pentium 30, my only doubt is to burn them : they are signed for 2-3 cells Lipo or 12 cell NiXX , need to power my EDFs by 4s Lipo. Would be same voltage like 12s NiXX, but I worry about the load current - will see later ) , when this issue is solced and a true flight is possible i can tell more

#24 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 00:12:49
von fax8
Great! Looking forward your first flight with FreeIMU. If you make a video, I'll put it on the
video section of the FreeIMU project.
#25 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 03:28:08
von Günti
es fehlt nur noch das richtige Barometer, mit 10cm Höhenauflösung
- MS5803-01BA - http://www.amsys.info/sheets/amsys.de.ms5803_01b.pdf
#26 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 07:44:57
von Crizz
Fabio, you got it ? Next Gen of FreeIMU possibly with barometric unit MS5803-01BA ?
btw : my Copter waits for new ESCs, the actual ones to weak for 4s. More later.
- tbc -
#27 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 08:49:20
von fax8
I'm very open to add a barometer in the next FreeIMU .. 10cm precision looks good in many applications, not only 4copters
#28 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 09:04:18
von Crizz
I´m very curious about it - and how /when the guys will add it into WMC Sketch

#29 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 12:45:10
von Mataschke
N
Approx. 14 USD per reel (1000pcs.)
looks promising
perhaps we can achieve to get Test samples?
#30 Re: Ardu-Copter mit 6DOF / 9DOF-IMU ?
Verfasst: 29.03.2011 12:53:11
von fax8
14 USD per reel (1000pcs.)
Well, I usually order parts tens of units.. I won't ever get that price.