Features:

Arduino UNO R3 - Original Made in Italy development board & USB cable

Micro-controller: ATmega328

1.0 pin-out: added SDA and SCL pins that are near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board

Stronger RESET circuit

Atmega 16U2 replaces the 8U2

Comes with USB cable

Specifications:

Operating Voltage: 5V

Input Voltage (recommended): 7~12V

Input Voltage (limits): 6~20V

Digital I/O Pins: 14 (of which 6 provide PWM output)

Analog Input Pins: 6

DC Current per I/O Pin: 40mA

DC Current for 3.3V Pin: 50mA

Flash Memory 32KB (ATmega328) of which 0.5KB used by bootloader

SRAM: 2KB (ATmega328)

EEPROM: 1KB (ATmega328)

Clock Speed: 16MHz

Color: Blue + White