Arduino is an open-source physical computing platform based on a simple I/O board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP,PD). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux) from http://www.arduino.cc
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