Arduino Duemilanove

The Arduino Duemilanove ("2009") is a microcontroller board based on the ATmega168 (datasheet) or ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

"Duemilanove" means 2009 in Italian and is named after the year of its release. The Duemilanove is the latest in a series of USB Arduino boards; for a comparison with previous versions, see the index of Arduino boards.

Summary

Microcontroller - ATmega168

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 - 40 mA

DC Current for 3.3V Pin - 50 mA

Flash Memory - 16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB used by bootloader

SRAM - 1 KB (ATmega168) or 2 KB (ATmega328)

EEPROM - 512 bytes (ATmega168) or 1 KB (ATmega328)

Clock Speed - 16 MHz

The source code for the Java environment is released under the GPL, the C/C++ microcontroller libraries under the LGPL, and the schematics and CAD files under Creative Commons Attribution Share-Alike licenses.