The 16u2 is the same as the 8u2 except it has 8KB more flash. So no real difference for normal use but it has the potential for better USB firmware supporting, for example, USB serial and HID keyboard/mouse/joystick at the same time.
The 16u2 is the same as the 8u2 except it has 8KB more flash. So no real difference for normal use but it has the potential for better USB firmware supporting, for example, USB serial and HID keyboard/mouse/joystick at the same time.