Optical mouse interface

[benji]

hello there,,
i need help interfacing an optical mouse into a hexapod, any one has done somthing like this before?
how do you change the lens into an appropriate one?
what output is usefull from a optical mouse and how would this be interfaced into an atmega microcontroller?

thanks for any helping

[hazzer123]

Im not sure about changing the lense. Why do you want to do that? Are you wanting to make it focus on the surface from further away and use it as a position sensor?

Anyway, there are 2 main protocols with mice and keyboards. USB and PS/2.

I know nothing really about USB, but i have researched PS/2 before.

Heres a good link - http://www.computer-engineering.org/ps2protocol/

[Ro-Bot-X]

Ehh, again, people forget that there is not only Google out there... What about Yahoo? When I'm looking for something I allways search on Yahoo first and Google second. Mostly because Google will give me results from Europe first and Yahoo from US first.

The first result that was not add related on Yahoo reveald this page:
http://home.roadrunner.com/~maccody/robotics/croms-1/croms-1.html

There are others, I'm sure...

[benji]

thank u guys for the links

Are you wanting to make it focus on the surface from further away and use it as a position sensor?

exactly

what i still lack here is the output form of mice

[Ro-Bot-X]

You should read the links inside the web page I gave you the link. There are plenty of explanations of the mouse sensor signal.