Re: [Paparazzi-devel] ArduIMU+ V3??

[Eduardo lavratti]

Hello Anish ... you are from DIY drones from right ?

> From: address@hidden
> Date: Wed, 18 Apr 2012 07:30:36 +0100
> To: address@hidden
> Subject: Re: [Paparazzi-devel] ArduIMU+ V3??
>
> Hi Stephen,
> Thanks for info. I have been tinkering with various (mostly open source) AP/flight controllers. So have been thinking of doing a comparison of those platforms. By the looks of things you have looked around quite a bit, wondering if u might share the data you have of various AP's offline. The various Wikipedia entries seem to be a bit biased or out of date :(
> Regards
> Anish
>
> Anish Mohammed
> Twitter: anishmohammed
> http://uk.linkedin.com/in/anishmohammed
>
> On 18 Apr 2012, at 01:31, Stephen Dwyer <address@hidden> wrote:
>
> > Hi Anish,
> >
> > I was thinking performance in terms of speed, features, sensor
> > quality, output quality etc. I don't know all that much about AHRS
> > systems, but the ArduIMU is rather slow (50Hz), and the atmega's speed
> > and memory size really limits possibilities (I worked with a v2 for a
> > bit and found the flash and ram got filled up pretty fast adding
> > additional features). Most other IMUs/AHRSs/INSs have high update
> > rates. I could think of some examples like the Ryan Mechatronics
> > CHIMU, VectorNav VN-100, MicroStrain units, etc. I believe the
> > aspirin/other sensor support right on paparazzi will give better
> > performance.
> >
> > Of course, you could argue for a long time about what is best :).
> >
> > -Stephen Dwyer
> >
> > On Tue, Apr 17, 2012 at 2:00 PM, Anish <address@hidden> wrote:
> >> Out of curiosity which one's would u consider as high performance
> >> AHRS units :)
> >> Sent from my BlackBerry wireless device
> >>
> >> -----Original Message-----
> >> From: Stephen Dwyer <address@hidden>
> >> Sender: address@hidden: Tue, 17 Apr 2012 10:56:54
> >> To: <address@hidden>
> >> Reply-To: address@hidden
> >> Subject: Re: [Paparazzi-devel] ArduIMU+ V3??
> >>
> >> Hello,
> >>
> >> You will definitely have to do some code modifications to the ArduIMU
> >> code and possibly the paparazzi code to be able to use ArduIMU v3. In
> >> v2 the i2c port was unused, and thus made into an i2c slave on the
> >> arduimu, so paparazzi could request measurements as desired.
> >>
> >> In v3, the magnetometer is attached to the atmega i2c port, which is
> >> probably configured as a master. So, you will have change the
> >> interface method to paparazzi, or not use the mag in the arduimu code
> >> and reconfigure to use i2c as a slave on the atmega, then possibly
> >> also use the twog to sample the mag if you would like these readings.
> >>
> >> It is probably achievable without too much effort if you look at the
> >> sample modified firmware for v2 in
> >> sw/airborne/firmwares/non_ap/arduimu_Firmware_WithGps/.
> >>
> >> Another option might be to purchase the v2 from Sparkfun, they seem to
> >> have some left in stock.
> >>
> >> Keep in mind the ArduIMUs are certainly not the most high performance
> >> AHRS units, compared to other options.
> >>
> >> Hope that helps.
> >>
> >> Thanks,
> >> -Stephen Dwyer
> >>
> >> On Tue, Apr 17, 2012 at 3:12 AM, iman shirdareh
> >> <address@hidden> wrote:
> >>> Hi
> >>>
> >>> I want to buy IMU from diydrones but they doesn't have ArduIMU V2 , they
> >>> have ArduIMU V3 .
> >>>
> >>> Now may I to use ArduIMU V3 with my Paparazzi TWOG autopilot?
> >>>
> >>>
> >>>
> >>> Thanks a lot..................Iman
> >>>
> >>> _______________________________________________
> >>> Paparazzi-devel mailing list
> >>> address@hidden
> >>> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >>>
> >>
> >> _______________________________________________
> >> Paparazzi-devel mailing list
> >> address@hidden
> >> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >> _______________________________________________
> >> Paparazzi-devel mailing list
> >> address@hidden
> >> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
> >>
> >
> > _______________________________________________
> > Paparazzi-devel mailing list
> > address@hidden
> > https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
> _______________________________________________
> Paparazzi-devel mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/paparazzi-devel