You can open the project [ fw1.aps] (fw1.aps) with AVR Studio.
Description: This is a simple program to control the mouse with the Atmel 90USB1287 microcontroller. The microcontroller will be recognized as HID device (Windows only). In this version, you need two buttons to control the mouse.
Please note: The comments in the code are in German, just message me if you have a question.