[Gta04-owner] Inertial measurement unit

[Rainer Dorsch]

An additional source of information could be the Android C++ implemention, see 
e.g.

https://github.com/android/platform_frameworks_base

platform_frameworks_base / services / sensorservice

-- Rainer

Am Wednesday 07 March 2012 schrieb Denis Shulyaka:
> Thanks Joerg,
> 
> That is exactly what I'm looking for!
> 
> 2012/3/6 Joerg Eesmann <jeesmann at gmx.de>:
> > Hi there,
> > I would look into the OpenPilot project (www.openpilot.org).
> > They have it all done for fixed wings and multicopters. I am going to
> > use that project by myself for my tricopter, I am going to build.
> > Especially the AHRS-project and Revolution platform contain the
> > algorithms for IMU. It is not only Kalman, but also Quaternions.
> > OpenPilot is a very well structured project, I guess the things you are
> > looking for could be easily ported from that.
> > best regards,
> > Joerg
> > 
> > On Tue, 2012-03-06 at 17:23 +0400, Denis Shulyaka wrote:
> >> Since GTA04 has a 3-axis gyro and a 3-axis accelerometer, it is
> >> possible to build an IMU with 6 degrees of freedom - a device that is
> >> capable to tell its location and orientation at every point of time.
> >> It was not possible with GTA02 because it only had 2 accelerometers.
> >> The IMU could have many interesting applications like quadrocopter
> >> controller, advanced gestures recognition or a tracking device where
> >> GPS is not accessible or not accurate enough.
> >> Imagine yourself painting a picture in the air with your GTA04 instead
> >> of a brush and then saving it as a jpeg file. Or pointing to a
> >> specific lamp in your smart house to switch it on or off (which also
> >> requires some additional hardware in the house though).
> >> As I know, all this requires some advanced math, that I'm interested
> >> in. Do you know any open projects of creating an IMU, or any links
> >> that would help to understand the math behind it?
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-- 
Rainer Dorsch
http://bokomoko.de/