Hello, Gyroscopes are very interesting, they work on the law of conservation of angular momentum. They (in a robot) would be powered by a motor instead of a string (see video below). they can be used to stabilize the robot or help detect changes in pitch or roll. This video should help.

Hope this helps! ~shuby

Hmmmmm link seems to be broken.

www.youtube.com/watch?v=cquvA_IpEsA

This should work!

ah i see !

but then to the project idea, see if you can give me some tips or pointers what to go for.

my idea is to make a robot that balances on one wheel, or a ball to be precise.

here is a video where they have one. my idea is to make this, (if not way to advanced.) with the ez-b. and have a robot balancing on it, and manouvers forward reverse and turning.

in the video it seems like a waaaaaaay over the head project, but im curious if it doable ? there using omni wheels and the construction is not to far advanced. the question i have is, how do they keep it balanced, i get the idea with gyroscope that you showed me, but how do the implement it in this robot ?

in my head, you should be able to use like a "tilt sensor" or 2.

and have it like:

if sensor feels tilt forward - move servo to position X if sensor feels tilt reverse- move servo to position Y etc etc.

and im guessing that there using digital gyros. and that they work similiar to this ?

Edit:

just realized that the ball movement was pretty high tech. it was kinda new to the "robotics world" :P

so i think i might consider something else :P