Arduino uno User Manual

What You Need
1. An Ethernet shield for the Arduino
2. A TMP36 temperature sensor
3. Some wires
4. A breadboard
5. An Arduino board, such as the Uno, Duemilanove, or Diecimila
6. A USB cable to connect the Arduino to your computer
Using Your PC to Transfer Sensor Data to the Internet
Remember when you connected your PC to the Internet, oh, around twenty
years ago? It all started with a 38,400 baud modem, Netscape Navigator 3,
and one of those AOL floppy disks or CD-ROMs you got in the mail. Today
you probably have broadband access via cable, satellite, or DSL, and it’s
probably available everywhere in your house via Wi-Fi. So, we’ll start by using
your existing connection to connect your Arduino to the Internet.
In the following figure, you can see a typical setup for connecting an Arduino
to the Internet. A program runs on your PC and communicates with the
Arduino using the serial port. Whenever the application needs Internet access,
the program on the PC deals with it. Using this architecture, you can Tweet
interesting sensor data.
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Arduino uno Specifications

General

Form factor	Arduino
Certification	RoHS, FC, CE
Processor model	-
Processor frequency	- MHz
Microcontroller model	ATmega328
Microcontroller frequency	16 MHz
DC input voltage	7-12 V
Operating voltage	5 V
DC current per I/O pin	40 mA
Flash memory	0.032 MB
Maximum internal memory	- GB
SRAM (Static Random Access Memory)	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory)	1 KB
Wi-Fi	No
Number of analog I/O pins	6
Number of digital I/O pins	14

Weight and Dimensions

Board dimensions	53.4 x 68.6 mm