HI
I planed to replace all IR thing in old mouse I have with some button
I almost know how transitor work in here , but it doesn't work
I tried everything that come to my mind , I've conect a-b , b-c , a-c to move mouse in Y-AXIS , but I failed
can anyone help me with it
(sorry for my bad english )

 

No doubt the sensor was looking through a chopper disk so it wants to see pulses not a set level, you might be able to swap the sensor to a switch but you will have to press it a lot of times to get any movement of the mouse.

 

Thanks a lot