DCCDuino Uno has a USB-to-Serial Chip different than previous versions, namely the ATmega8U2 USB to TTL.
It, like its predecessors, a USB B connection and also has a bootloader that only 0.5 KB of total memory used (requires 2.0 KB).
Like the other clones using this Arduino design with the ATMEGA328P chip but with a
USB interface is controlled by the more stable CH340G chip.
Extra header options
This Arduino clone is very popular and by the built-in USB interface is very easy to program. With the Arduino development software you already run your first program within minutes.
Operating Voltage: 5 Volt
Input Voltage(max): 20 Volt
Digital I/O Pins: 14 (with 6 possible PWM output pins)
Analog Input Pins: 6
DC Current per I/O: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 32 KB
SRAM: 2 KB
EEPROM: 1 KB
Clock Speed: 16 MHz
download arduino’s IDE
Download: http://arduino.cc/en/Main/Software (Copy Open)
USB chip driver downloading at http://www.wch-ic.com/download/list.asp?id=126