RE: [Paparazzi-devel] Paparazzi for a Quadrotor -- should i start by using a Tiny V2.1 ??

[郭 flying pig]

Hi there
 
  Sorry to sent so many e-mail around in short time.
 
  I have checked all the components list from sch for Booz_main, IMU, GPS. Most of them are fine, manage to get all of them from either digikey, farnell and RS, however, there are two items that i have problem to find.
 
  MPX6615  for booz_main and AMI601  for the GPS  which supplier do you order from?
 
 
Thanks
 
                                                                                 Chen

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From: address@hidden
To: address@hidden
Subject: RE: [Paparazzi-devel] Paparazzi for a Quadrotor -- should i start by using a Tiny V2.1 ??
Date: Thu, 28 May 2009 09:07:56 +0000

Hi there
 
  Thanks for your reply, well, I an planning to try if it is also possible to connect to the tinyv2.1, but at same time, i will also conenct to booz_main to see the different.
 
 
  Now, just have to wait until the board has been ordered.
 
 
 
Thanks  for all the information you provided
 
 
                                                                                            Chen
 
> Date: Thu, 28 May 2009 01:59:18 -0700
> Subject: Re: [Paparazzi-devel] Paparazzi for a Quadrotor -- should i start by using a Tiny V2.1 ??
> From: address@hidden
> To: address@hidden
>
> Hi
>
> the booz2 imu produces its analog 5V for the gyros with a LDO
> (lp2992), so you need to supply it with a tension greater than 5V +
> the LDO dropout (450mv)
> The booz controller board produces a 6.5V with a linear reg directly
> from the battery voltage to avoid any switching supply noise in the
> analog voltage.
> The lp2992 is rated for 16V, so if your capacitors have the same
> rating, you could try to run the IMU directly from your 3 cells lipo
> pack. I haven't tried it
> Maybe the best way is still to connect the IMU to the booz controller
> board instead of to a tiny
>
> Regards
>
> Poine
>
> 2009/5/28 郭 flying pig <address@hidden>:
> > Hi there
> >
> > I have some question also regarding the BOOZ_IMU, so it can connect
> > directly to TinyV.2.11? but from the Sch, it need to supply 6.5V? or it is
> > better to connect BOOZ_IMU to BOOZ_main ?
> > From what i guess when i read though all the sch, Booz_main is the
> > controller, which connect to IMU and GPS (the gps for booz), am i right ?
> >
> >
> >
> >
> >
> >
> >
> > Thanks
> >
> > Chen
> >
> >> Date: Wed, 27 May 2009 13:11:06 -0700
> >> Subject: Re: [Paparazzi-devel] Paparazzi for a Quadrotor -- should i start
> >> by using a Tiny V2.1 ??
> >> From: address@hidden
> >> To: address@hidden
> >>
> >> Hello
> >>
> >> > At this point of the discussion here and with Anton on the IRC, i would
> >> > appreciate if some of you could say i am taking the right start :
> >> > As the new Booz2 hardware is not available , i was thinking to start my
> >> > quadrotor project in that way :
> >> >
> >> > 1)buy from a PPZ user an used Tiny v2.1 board ...
> >> > 2)build an "homemade" 6 DoF IMU , probably using sensors boards from
> >> > Sparkfun
> >> > 3)Connect that IMU to the Tiny board
> >>
> >> I doubt you will be able to achieve good perfromances with that solution
> >> You gyros will be wiggling on the sparkfun sensor boards, the wires
> >> connecting them to the tiny will inject alot of noise in the fragile
> >> analog signal and the 10 bits ADCs of the LPC will give you a big
> >> discretization.
> >>
> >> If you intend to assemble hardware, i would rather suggest to assemble
> >> a booz2 IMU (http://poinix.org/images/imu_v1_1.jpg) - CAD files are
> >> available in the paparazzi4 svn at savannah (
> >> paparazzi4/trunk/hw/booz/)
> >> The biggest problem beeing soldering the BGAs gyros.
> >>
> >> > This should allow to be able to fly my quadrotor and start to use PPZ
> >> > while
> >> > waiting the Booz2 hardware to be available and PPZ software to be
> >> > available.
> >>
> >> Software is available in the savannah svn. Navigation is even there,
> >> the performances is just not completely satisfying. The stabilisation
> >> and vertical guidance have satisfying performances
> >>
> >> http://poinix.org/video/booz2_step_roll.avi
> >> http://poinix.org/video/booz2_vert_ctl_v0.2_mass_2.mp4
> >>
> >>
> >> Regards
> >>
> >> Poine
> >>
> >>
> >> _______________________________________________
> >> Paparazzi-devel mailing list
> >> address@hidden
> >> http://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >
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> >
>
>
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