Steve Symons’ “MUIO Interface” is an easy to use, homebrew microcontroller board that operates over USB and requires no programming to get started. The board features everything from on board analog to digital converters, an I2C bus, three expansion busses, and more! Programming the board is only OSX and Linux compatible at the moment, but there might be hope for a Windows version soon. Since MUIO works seamlessly with Adobe’s Director and Flash applications, Max/MSP, Processing, SC3, and PureData, it’s easier than ever to get “real-world” sensing into your projects. Think of it as “Arduino Light’.
MUIO: “Programming-Free” Microcontrollers – Link