Arduino UNO R3 A000066 - Computer Hardware Manual

Description

The Arduino® UNO R3 is the perfect board to get familiar with electronics and coding. This versatile development board is equipped with the well-known ATmega328P and the ATMega 16U2 Processor.

This board will give you a great first experience within the world of Arduino.

Target areas:"
Maker, introduction, industries

Features

ATMega328P Processor

• Memory
  • AVR CPU at up to 16 MHz
  • 32 kB Flash
  • 2 kB SRAM
  • 1 kB EEPROM
• Security
  • Power On Reset (POR)
  • Brown Out Detection (BOD)
• Peripherals
  • 2x 8-bit Timer/Counter with a dedicated period register and compare channels
  • 1x 16-bit Timer/Counter with a dedicated period register, input capture and compare channels
  • 1x USART with fractional baud rate generator and start-of-frame detection
  • 1x controller/peripheral Serial Peripheral Interface (SPI)
  • 1x Dual mode controller/peripheral I2C
  • 1x Analog Comparator (AC) with a scalable reference input
  • Watchdog Timer with separate on-chip oscillator
  • Six PWM channels
  • Interrupt and wake-up on pin change
• ATMega16U2 Processor
  • 8-bit AVR® RISC-based microcontroller
• Memory
  • 16 kB ISP Flash
  • 512B EEPROM 512B SRAM
  • debugWIRE interface for on-chip debugging and programming
• Power
  • 2.7-5.5 volts

The Board

Application Examples

The UNO board is the flagship product of Arduino. Regardless if you are new to the world of electronics or will use the UNO R3 as a tool for education purposes or industry-related tasks, the UNO R3 is likely to meet your needs.

First entry to electronics: If this is your first project within coding and electronics, get started with our most used and documented board; UNO. It is equipped with the well-known ATmega328P processor, 14 digital input/output pins, 6 analog inputs, USB connections, ICSP header and reset button. This board includes everything you will need for a great first experience with Arduino.

Industry-standard development board: Using the UNO R3 board in industries, there are a range of companies using the UNO R3 board as the brain for their PLC's.

Education purposes: Although the UNO R3 board has been with us for about ten years, it is still widely used for various education purposes and scientific projects. The board's high standard and top quality performance makes it a great resource to capture real time from sensors and to trigger complex laboratory equipment to mention a few examples.

Related Products

• Arduino Starter Kit
• Arduino UNO R4 Minima
• Arduino UNO R4 WiFi
• Tinkerkit Braccio Robot

Ratings

Recommended Operating Conditions

NOTE: In extreme temperatures, EEPROM, voltage regulator, and the crystal oscillator, might not work as expected.

Power Consumption

Functional Overview

Board Topology

Top view

Board topology

Processor

The Main Processor is a ATmega328P running at up to 20 MHz. Most of its pins are connected to the external headers, however some are reserved for internal communication with the USB Bridge coprocessor.

Power Tree

Power tree

Board Operation

Getting Started - IDE

If you want to program your UNO R3 while offline you need to install the Arduino Desktop IDE [1] To connect the UNO R3 to your computer, you'll need a USB-B cable. This also provides power to the board, as indicated by the LED.

Getting Started - Arduino Cloud Editor

All Arduino boards, including this one, work out-of-the-box on the Arduino Cloud Editor [2], by just installing a simple plugin.

The Arduino Cloud Editor is hosted online, therefore it will always be up-to-date with the latest features and support for all boards. Follow [3] to start coding on the browser and upload your sketches onto your board.

Sample Sketches

Sample sketches for the UNO R3 can be found either in the "Examples" menu in the Arduino IDE or in the "Documentation" section of the Arduino website [4].

Online Resources

Now that you have gone through the basics of what you can do with the board you can explore the endless possibilities it provides by checking exciting projects on Arduino Project Hub [5], the Arduino Library Reference [6] and the online Arduino store [7] where you will be able to complement your board with sensors, actuators and more.

Connector Pinouts

Pinout

JANALOG

JDIGITAL

Mechanical Information

Board Outline & Mounting Holes

Board outline

Documents / Resources

References

• Arduino - Home

Download manual

Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.

Download Arduino UNO R3 A000066 - Computer Hardware Manual