Hello All,

I was inspired by Google's video on an android based labyrinth maze control=
ler and constructed a similar small scale one using a maze game available i=
n the market. I connected two stepper motors to the operate two axes of con=
trol. I am operating the steppers using an Eibot board that I bought from S=
parkfun:

http://www.sparkfun.com/products/10025

I am controlling two steppers using this board. I am operating this board v=
ia USB serial port in Linux. Now there are many people who have actually ma=
de the ball reach without dropping into any of the holes.=20


I particularly like this video:

http://www.youtube.com/watch?v=3DPrq78ctJ2Rk&feature=3Drelated

The user has implemented a PD control algorithm. I would like to implement =
one such algorithm for my maze but I am not aware of how to implement the s=
ame.=20


I am also considering to add some form of feedback control particularly vis=
ion/gyro.=A0 But I have no clue of implementing a control algorithm for the=
 system and I am looking for a headstart.

I am looking for a suggestion for an efficient way of controlling and opera=
ting the maze. Any help would be appreciated.


Thanks,
Sai
--=20
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