Arduino Uno Manual

Arduino Ikke kategoriseret Uno

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Arduino Uno

Overview

The Arduino Uno is a microcontroller board based on the ATmega328 ( ). It has 14 digitaldatasheet

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.

The Uno diers from all preceding boards in that it does not use the FTDI USB-to-serial driver chip.

Instead, it features the Atmega8U2 programmed as a USB-to-serial converter.

"Uno" means one in Italian and is named to mark the upcoming release of Arduino 1.0. The Uno and

version 1.0 will be the reference versions of Arduno, moving forward. The Uno is the latest in a series of

USB Arduino boards, and the reference model for the Arduino platform; for a comparison with previous

versions, see the index of Arduino boards.

Summary

Microcontroller ATmega328

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 32 KB (ATmega328) of which 0.5 KB used by bootloader

SRAM 2 KB (ATmega328)

EEPROM 1 KB (ATmega328)

Clock Speed 16 MHz

Schematic & Reference Design

EAGLE les: arduino-uno-reference-design.zip

Schematic: arduino-uno-schematic.pdf

Power

The Arduino Uno can be powered via the USB connection or with an external power supply. The power

source is selected automatically.

External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter

can be connected by plugging a 2.1mm center-positive plug into the board's power jack. Leads from a

battery can be inserted in the Gnd and Vin pin headers of the POWER connector.

The board can operate on an external supply of 6 to 20 volts. If supplied with less than 7V, however, the

5V pin may supply less than ve volts and the board may be unstable. If using more than 12V, the voltage

regulator may overheat and damage the board. The recommended range is 7 to 12 volts.

The power pins are as follows:

VIN. The input voltage to the Arduino board when it's using an external power source (as opposed to

5 volts from the USB connection or other regulated power source). You can supply voltage through

this pin, or, if supplying voltage via the power jack, access it through this pin.

5V. The regulated power supply used to power the microcontroller and other components on the

Produkt Specifikationer

Mærke:	Arduino
Kategori:	Ikke kategoriseret
Model:	Uno
Wi-Fi:	Ingen
Formfaktor:	Arduino
Ethernet LAN:	Ingen
Certificering:	RoHS, FC, CE
Processorfrekvens:	- MHz
Maksimal intern hukommelse:	- GB
DC indgangsspænding:	7-12 V
Driftsspænding:	5 V
Flashhukommelse:	0.032 MB
Board dimensioner:	53.4 x 68.6 mm
Mikrocontroller model:	ATmega328
DC-strøm pr. I/O-ben:	40 mA
Antal digitale I/O-ben:	14
Antal analoge I/O-ben:	6
SRAM (Statisk Random Access Memory):	2 KB
EEPROM (Electrically Erasable Programmable Read-Only Memory):	1 KB
Mikrocontroller frekvens:	16 MHz
PWM digitale I/O-ben:	6