used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP).
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nThe open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).
nSensor Shield allows you to connect to various modules like sensors, servos, relays, buttons, potentiometers.
nEach functional module has buckled port with VCC, GND and Output, which has corresponding port on the Sensor Shield, connected with a plain 2.54mm dual-female cable you may start playing already.
nBuckled brick cables are like cement for bricks, make the connections easier, secure and more professional looking.