Arduino mouse moving

I want to make a program that moves the mouse (cursor) for me. I don't really care much for implementing input from anything, i just wanna make a program that moves it on its own.

for example: Maybe a program that'll move the mouse in circles over and over

I'm using an arduino uno
(im kinda new to arduino)

I want to make a program that moves the mouse (cursor) for me.

You need an Arduino that can do that.

I'm using an arduino uno

That's not one of them.

A Micro or Leonardo can, as can the Teensys.

synsyn:
Maybe a program that'll move the mouse in circles over and over

April Fools day is only a few months away!

thanks for the information : >

many option:
1-a simple motor and a holder that either move the mouse or something near the sensor (beneat)

2-open up a mecanical mouse and attach stepper motor or unlimited servo to both the vertical and horizontal optical rotary encoder.

3-decode the signal emited by a PS2 or USB mouse and send you own data without any mouse

4-plenty of software online that can do the same directly on the PC without having to joggle with a mouse, but you need to download and run them.

i guess for a pratical joke, you could fit a minuature arduino inside a mouse and intercept the optical sensor before resending the data. you'll need a scope and i dont know if a arduino could do it fast enought without lag.

@pomelum, refer to reply #1. There are Arduinos that can appear like a mouse to the PC USB port.