The Arduino Uno is a development board with the ATMEL ATmega328P chip in a DIP package. It has an USB port, which is provided by an additional ATmega16U.

Arduino Uno (R3)
The Arduino Uno is a development board with the ATMEL ATmega328P chip in a DIP package. It has an USB port, which is provided by an additional ATmega16U.
Arduino Uno (R3)