The produce USB interface (CUI) was a job that came out of UC Santa Barbara around the exact same time the Arduino was being developed. It has a USB port, a PIC18F4550, as well as a prototyping area. It was designed to allow simple interfacing with the genuine would with many A/D inputs as well as general I/O ports. It supports both OSC as well as MIDI-over-USB natively. The biggest difference between the CUI as well as the Arduino is its USB support. The Arduino utilizes an FTDI chip to produce a serial interface to its onboard AVR. The CUI’s pic has native support for USB. That means you can have the CUI appear to be any type of USB HID gadget you want: keyboard, mouse, game controller, etc.

The Arduino has a friendly advancement atmosphere as well as a big complying with though. CUI produce [Dan Overholt] decided to add an ATmega168 to his board to get the very best of both worlds, the CUIduino (scroll down). It can be programmed just like any type of other Arduino compatible device, however the having the CUI parent means your Arduino job can behave like a native USB HID gadget.

[Thanks Peter]