ARDUINO
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. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
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, Matlab, Labview, VB).
Arduino Uno, Arduino Leonardo, Arduino Mega 2560, Arduino ADK for Android, Arduino Due, Arduino Yun, Arduino Tre, Arduino M0 Zero, Arduino Micro, Arduino Esplora, Arduino Robot, Arduino Mini, Arduino Nano, Arduino Yun Mini, Lilypad, Arduino ETH, Arduino Pro mini, Arduino Fio, Arduino Pro, Arduino Starter kit.
Arduino Ethernet shield, Arduino Motor Shield, Arduino WIFI shield, Arduino GSM Shield, Arduino Wireless Shield, Arduino Proto Shield, Arduino Bluetooth Shield, Arduino Meter Shield, Arduino xbee Shield, Arduino 9 Axes Motion Shield, Arduino Relays Shield.
Arduino Sensors, Arduino interface modules, Arduino Accessories