Protocol needed for PS2 optical SCROLLING mouse.

[ROCKET SCIENTIST]

Hello guyz,

I'm gonna interface a ps2 optical mouse with my AVR mega8 MCU. I;ve searched over internet for the protocol details, and I've got some of them which describes mice with 3 buttons(didn't say about the wheel) but I couldn't find any protocol details describing for mice with Scrolling wheels ..

For any reference or suggestion, I'll be thankful.

Regards,

R_S..

 

[tpetar]

See this for USB, check videos
http://www.libstock.com/projects/view/597/usb-host-library

The PS2 Keyboard Library for AVR
http://extremeelectronics.co.in/avr-tutorials/ps2-keyboard-interface-with-avr-mcu/

AVR PS2 mouse readout example
http://www.electronics-base.com/ind...te-projects/114-avr-ps2-mouse-readout-example


PS2 Mouse interfaced with AVR ATmega16 showing cursor on LCD

You have circuit and source on this link : http://www.mediafire.com/?t02y74wvniwx1yo

 

[ROCKET SCIENTIST]

Hello tpetar,

many thanks for these links. they are really helpful.