[Gta04-owner] Inertial measurement unit

[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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>
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