4 Arduino 2009-05-04 Arduino Duemilanove Diecimila NG microcontroller fritzing core /obsolete/Microcontroller Board (Arduino) ATmega Arduino UNO R3 The awesome Arduino microcontroller reserved

Digital I/O 0 / Serial Recieve

SCL for Two Wire Interface

SDA for Two Wire Interface

Digital I/O 0 / Serial Recieve

Digital I/O 8

Reset

Digital I/O 7

+3.3V DC

Digital I/O 6

+5 V Regulated DC

Ground

Ground

DC Supply Voltage Input

Analog Input 0

Analog Input 1

Analog Input 2

Analog Input 3

Analog Input 4

Analog Input 5

aref

Ground

Digital I/O 13

Digital I/O 5

Digital I/O 12

Digital I/O 4

Digital I/O 11

Digital I/O 3

Digital I/O 2

Digital I/O 10

Digital I/O 9

Digital I/O 1 / Serial Transmit