Biped balance and Low Cost Gyros: experiences? which one to use?

Hi Matthias,
I have used the Murata ENC-03J rate gyros.
I got mine from androidworld.com.
They have proven to be very reliable.

For what you are doing you will need to merge a stable vertical
reference from an inclometer (sp?) or accelerometer with the rate roll
from the gyro.

I have done this in a small balacing robot  quite successfully.

Look for "complementary filters" or if you're into maths "Kalman
filters".
The rotomotion project on source forge is a very good starting point.
The other thing is to search on ballancing robots and read up on their
various approches. Nbot & Gyrobot are 2 that spring to mind.

Where did you get pricing on the gyration ones? They only seem to sell
end products on the site.

Regards,
Robin


On Tue, 28 Jun 2005 00:42:25 +0200, "Matthias Melcher"

robin.hartley@xtra.co.nz wrote:

Phew, 50 Euros per angle. I knew it would not be cheap ;-)


Cool. Good to know that it does work. Thanks for that jump start. I'll
dig into what I find.


I did not get pricing, but I assumed that they would do wholesale since
the describe many details about the actual component. The probably want
to sell numbers. I will give them a call anyway... .

Thanks again,

  Matthias

@news.t-online.com:


Plese follow up with the pricing info when you get it.

Thanks,

Joe

--
Mini ITX and other computer goodies:
www.brokenacres.rite2u.com

joecoin wrote:

I got into contact with them and they were very friendly and helpful. I
am getting the eval kit and I will post my experiences with it as soon
as I have tried out some stuff.

Matt

robin.hartley@xtra.co.nz wrote:

I think these are usually salvaged from Gyropoint mice available on eBay
for, typically, about $20.

More information on the Microgyro 100 is here:
http://bobodyne.com/web-docs/robots/Trippy/Gyro/applic~1.pdf

Mitch Berkson

robin.hartley@xtra.co.nz wrote:


You can buy a MicroGyro 100 starter kit for $450 here:
http://www.gyration.com/us/tech/MG100-starter.htm

Mitch