Arduino Uno SMB [Uno SMB] - $30.00 : FunGizmos, make something fun!
Arduino Uno This is the new Arduino Revision 3! It sports an updated USB controller chip (was an atmega8u, now an atmega16u), duplicated Analog 4 and 5 pins next to the AREF pin (for future shields) and an IOREF pin next to the reset button (to let shields know the I/O voltage of the pins.) Also, the reset button has moved next to the USB jack to allow for easy access when the shield a shield is on top. Everything else is the same, processor, driver, board size, upload speed, etc, so it is compatible with all current shields and code. The Arduino Uno is the wildly popular microcontroller board that has taken the world by storm.
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