Arduino uno User Manual

Figure 5—The Arduino IDE is well organized.
• When you click the Upload button (DU or Ctrl-U), the IDE compiles the
current program and uploads it to the Arduino board you’ve chosen in
the IDE’s Tools > Serial Port menu. (You’ll learn more about this in Com-
piling and Uploading Programs, on page 19.)
• The New button (DN or Ctrl-N) creates a new program by emptying the
content of the current editor window. Before that happens, the IDE gives
you the opportunity to store all unsaved changes.
• Open (DO or Ctrl-O) opens an existing program from the file system.
• Save (DS or Ctrl-S) saves the current program.
• The Arduino can communicate with a computer via a serial connection.
Clicking the Serial Monitor button (BDM or Ctrl-Shift-M) opens a serial
monitor window that allows you to watch the data sent by an Arduino
and also to send data back.
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Meeting the Arduino IDE • 15
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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