I need to know how a mouse scroll wheel works. I've tried googling it and I may throw in a couplw creds to the person who can tell me how. I do need the inside (hardware) details not just how u move it up and down... I'm not that much of a retard. I don't need a 3 page essay, but enough so I can understand it Thanks a bunch
move the scroll button up, it moves up a page, down scrolls down a page. exactly what more do you need to know?
myn is optical when u move the lil scroll thing it sets of sincors and the rest is history (im not a genius u can tell)
Here's ashort description. If you want more info, I would recommend you just take one apart. And this may not apply to all mice with scroll wheels... The mouse wheel is not solid. Although the part that you see has no holes in, nearer the center of the wheel, towards the axle that it spins on, there are small holes. On one side of the wheel, there is a micro light that gives out infra-red light. On the other, there is a sensor. There are two of them, on their respective sides, one near the front and one near the back of the mouse. One of them is placed a tiny bit higher than the other. As the wheel spins, the light is interupted. Sometimes it can go through the holes, and sometimes the wheel is in the way. As you scroll the wheel, the microchip in the mouse detects how long the pasuses are between when the light is allowed through and when it is not. In this way, it can determine the speed of scrolling. For the direction, that fact of how high they are comes into play. Because one is slightly higher (about half a mm I think) they are blocked at different times. Dependig on which is blocked first, the chip can detect which way the scroll wheel is spinning. The bumps you feel while scrolling are there to prevent the wheel from free spinning. I hope that description made sense. If may be different in some mice, though (especially older ones - I'm not sure). Good luck with whatever you wanted to know it for.
