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Arduino Uno R3 USB Microcontroller

Product Code : RB-Ard-34

by Arduino

 In stock

  • Arduino microcontroller module with USB connection
  • Wide variety of accessory "Shields" available
  • It is intended for roboticists, artists, designers and hobbyists
  • Variety of I/O pins including analog, digital, PWM and more
  • Based on the ATmega328 (removable DIP IC)
  • Revision 3

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About this product

Description

  • Arduino microcontroller module with USB connection
  • Wide variety of accessory "Shields" available
  • It is intended for roboticists, artists, designers and hobbyists
  • Variety of I/O pins including analog, digital, PWM and more
  • Based on the ATmega328 (removable DIP IC)
  • Revision 3

The Arduino Uno is a microcontroller board based on the ATmega328 microchip. It has 14 digital 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 1.5m USB Cable Type A to B or power it with an Wall Adapter Power Supply - 9VDC 650mA or DFRobot 7.4V Lipo 2500mAh Battery (Arduino Power Jack) to get started.

The Arduino Uno differs from all preceding boards in that it does not use the FTDI USB-to-serial driver chip. Instead, it features the Atmega16U2 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 Arduino, moving forward. The Uno is the latest in a series of USB Arduino boards, and the reference model for the Arduino platform.

Arduino Uno R3 USB Microcontroller

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.

The Arduino Uno can be programmed with the Arduino software. Select "Arduino Uno from the Tools > Board menu (according to the microcontroller on your board). For details, see the reference and tutorials. The ATmega328 on the Arduino Uno comes preburned with a bootloader that allows you to upload new code to it without the use of an external hardware programmer.

Arduino Uno R3 USB Microcontroller

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 five 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.This pin outputs a regulated 5V from the regulator on the board. The board can be supplied with power either from the DC power jack (7 - 12V), the USB connector (5V), or the VIN pin of the board (7-12V). Supplying voltage via the 5V or 3.3V pins bypasses the regulator, and can damage your board. We don't advise it.
  • 3V3. A 3.3 volt supply generated by the on-board regulator. Maximum current draw is 50 mA.
  • GND. Ground pins.
  • IOREF. This pin on the Arduino board provides the voltage reference with which the microcontroller operates. A properly configured shield can read the IOREF pin voltage and select the appropriate power source or enable voltage translators on the outputs for working with the 5V or 3.3V.
Arduino Uno R3 USB Microcontroller

Memory

The ATmega328 has 32 KB (with 0.5 KB used for the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).

Supplier Product Code

A000066

Dimensions

  • Length: 2.7 inches
  • Width: 2.1 inches


The USB connector and power jack extend beyond these dimensions.
Four screw holes allow the board to be attached to a surface or case.
Note that the distance between digital pins 7 and 8 is 160 mil (0.16"), not an even multiple of the 100 mil spacing of the other pins.

Servo Article

Making Robots With The Arduino, Part 1, by Gordon McComb, Servo Magazine November 2010

Specifications

  • 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

Related Products


Reviews

Reviews Summary

88
5
0
0
0
(Click a rating to filter customer reviews)

Customer Reviews

Love it!

Review by Mohammad Reza
General

Simply works right out of the box!

(Posted on 4/4/18)

Very Nice product!

Review by Nevardo
General

Very Nice product! This product is popular and very useful for my prototypes.

(Posted on 3/15/18)

Application perfect

Review by Jason
General

Worked perfectly for the 4 fan controller project I was working on.

(Posted on 3/12/18)

Very good product

Review by Gabriel
General

It is a very good product.

(Posted on 2/19/18)

New version has clear plastic base

Review by Jeffrey
General

The new version has a clear plastic base which is good for mounting or for preventing the sharp pins on the bottom of the board from scratching your desk. Labels on the outside of the headers are nice too.

(Posted on 12/12/17)

Arduino Uno R3 USB Microcontroller

Review by Senthilkumar
General

It is a very good product and very much useful for my students. service by Robotshopis excellent and commentable. Thanks

(Posted on 11/26/17)

RobotShop provides great service.

Review by Gregory
General

I recently found RobotShop and they have been great at assisting me with my Arduino needs.

(Posted on 10/31/17)

Excellent

Review by Lawrence
General

This is a stable products

(Posted on 10/11/17)

Arduino Uno R3 USB Microcontroller

Review by Otto
General

A superb product. Excellent and addresses our needs for use.

(Posted on 8/3/17)

Fast Processing and Shipping

Review by Ainul Rohman
General

As usual, Robotshop always ship ASAP and of course give the best products condition

(Posted on 6/14/17)

Awesome Product

Review by Jason
General

We use this on all our AmmoBot drive systems

(Posted on 6/8/17)

Excellent product

Review by Ali
General

I believe Arduino Uno is revolutionary product in micro-controller industry. This product has open source software which can be used foe advanced control algorithm.

(Posted on 6/1/17)

Excelent

Review by Rohman
General

Simple and easy to use product, prefect for both prototyping and development purpose,

And always fast processing and shipping from robotshop,
Thank you

(Posted on 5/10/17)

Works as expected not a time waster

Review by Timothy
General

Fantastic not a clone . Spent 2 weeks trying to get My CNC project to work turns out it was the cheap clone I got elsewhere top quality

(Posted on 5/10/17)

Excellent build for Uno

Review by Daniel
General

All as expected for this product, not a cheap knockoff. No issues.

(Posted on 5/9/17)

Excellent product, very easy to use.

Review by Yves
General

Very easy to program, good Library and many exemples.

(Posted on 4/25/17)

Good but iffy

Review by Alanjai
General

Nice that Arduino™ has added a plastic carrier, very handy. BUT they have changed their connectors (I think they are custom to combat cheap knock-offs) unfortunately they are of a cheaper plastic than the originals and may fail prematurely- will have to see.

(Posted on 4/2/17)

Nice as advertised product

Review by Jaybo
General

Looking forward to playing with these items. Nice doing business with you.

(Posted on 2/20/17)

Nice as advertised product

Review by Jaybo
General

Looking forward to playing with these items. Nice doing business with you.

(Posted on 2/20/17)

well made board

Review by James
General

the Arduino UNO board is well supported board on their web site. seems to have no bugs while operating it.

(Posted on 2/13/17)

Fast and Easy

Review by Mike
General

Good product and service

(Posted on 2/13/17)

cute little computer

Review by David
General

I have not used the Arduino extensively, but I found it relatively easy to set up and to start coding. I did purchase a cookbook to help though. I think I am going to have some fun with it.

(Posted on 2/11/17)

Good microcontroller !

Review by Robert
General

An original Arduino Uno board, works perfectly and does what it's supposed to do !

(Posted on 2/9/17)

very good function

Review by Bingze
General

very good function

(Posted on 2/8/17)

Great microcontroller

Review by Jonathan
General

Solid platform to learn embedded coding and hardware integration and an invaluable tool in any technologist's collection!

(Posted on 1/25/17)

Fun

Review by Dave
General

Been having a blast playing around with this!

(Posted on 1/18/17)

Great Services

Review by Rohman
General

I am very pleased with RobotShop. The products work very well and delivered quickly

(Posted on 1/2/17)

Good Product

Review by David
General

This arrived on time, and everything seems to work properly. Seems like a great product.

(Posted on 12/26/16)

Perfect

Review by Ash
General

Good micro controller and it comes with a nice housing and packaging

(Posted on 12/23/16)

Great Product and Great Service

Review by Ainul
General

Works well and arrived on time
Thanks

(Posted on 11/22/16)

My first order

Review by AEnthusiast
General

The order arrived quickly and well packaged. Also items on RobotShop.com seem very competitively prices.

(Posted on 11/21/16)

Great product

Review by Daniel
General

This is a great product for people wanting to get started with microcontroller's, it's loaded with programs already and they are fun to play with

(Posted on 11/3/16)

Dependable, Genuine-Arduino Boards

Review by Drew
General

Our company makes custom shields for neuroscience labs and we pretty much buy these boards by the hundreds. We buy from Robot Shop because, so far in our experience, they only stock the dependable official Unos from Arduino. None of the sketchy Chinese knock-offs.

(Posted on 9/29/16)

Great device

Review by Jesse
General

Can't wait to start using it!

(Posted on 9/6/16)

Great product

Review by Jason
General

We have bought several of these and they have all worked flawlessly.

(Posted on 8/18/16)

Great device

Review by Patrice
General

Good product.
We bought 5 and had one board with one pin defectuous. Otherwise, it works well, it is compatible with linux.
Numerotation of pins is not really simple to understand (why is the pin n°1 not a simple analogic pin????), but its easy to fix this little problem

(Posted on 7/7/16)

Awesome board

Review by Roger
General

Worked flawlessly right out the box, great device to teach with.

(Posted on 6/27/16)

Great board

Review by Burhan
General

These were purchased as prizes for a student conference. Excellent service, quick delivery, and the best price locally by Robotshop. Highly recommended, would definitely buy again.

(Posted on 6/24/16)

Great board!

Review by BT
General

These were bought as prizes for a student conference. Great service, fast delivery, and best price by Robotshop. Highly recommended, will definitely purchase again.

(Posted on 6/24/16)

Excellent Boards

Review by Jason
General

We use Arduino as our controller in our AmmoBot machines. The real deal Arduinos are much better than the cheap, Chinese knock-offs that you can find on other websites. Do yourself a favor, buy the real thing. I haven't found a better price on genuine Arduino boards anywhere else.

(Posted on 6/24/16)

Great product

Review by Antti
General

This arduino has the highest compatibility with arduino shields I think.

(Posted on 5/18/16)

Great Product And Fast Shipping

Review by Ainul
General

I am very pleased with this product and with RobotShop

This product is very prefect to build autonomous systems, simple and great support from forum and developer

All of my order arrived with good condition, on time and of course original product

Thank you

(Posted on 5/13/16)

Excellent produit

Review by Bernard
General

De nombreuses heures d'apprentissage et de plaisirs.

(Posted on 4/20/16)

Great board. Really fast delivery.

Review by SYLVAIN
General

Great board. Really fast delivery.

(Posted on 4/14/16)

Good quality, fast delivery

Review by Valerie
General

Original Arduino board, works great!

(Posted on 3/23/16)

Great service

Review by Paul
General

I have two Unos already and enjoyed doing a few projects with them. That is why I have purchased two more.

(Posted on 3/15/16)

First time project

Review by Paul
General

Excellent experience with my first project. I purchased this board to make my project permanent and keep my original board for testing new projects.

(Posted on 2/29/16)

Cool product

Review by Denis
General

fast delivery time :)

(Posted on 2/28/16)

Great product, super fast delivery!

Review by Daniel
General

Super board. Works great. Deluvery was extremely fast. Thanks Robot Shop.

(Posted on 2/28/16)

They work as expected

Review by demetrio
General

They work as expected

(Posted on 2/28/16)

Brilliant Board, Delivered on time!

Review by Jamie
General

Very good experience with this Arduino board so far! Delivery arrived on time with no let downs! The labeling on the side of the board is awesome! I would definitely buy of RobotShop again!

(Posted on 2/11/16)

Great product insanely fast delivery time!

Review by Kenny
General

I don't give reviews often, but this delivery was so super fast and you just have a fantastic stock!

Arduino is just a great product as is!
I make my own boards, but when i wan't a quick fix
i buy a arduino and the shield to use and i'm good to go.

(Posted on 2/9/16)

True Arduino micro controller

Review by Bruce
General

I've bought a few Arduino clones and can honestly say the board RobotShop is selling is an official Arduino and of really good quality. One of the things that stand out is the labeling printed on the input sockets, you can tell which pin you are using at a glance. I ended buying another 3 of them after I received the first one and realised just how good a board an original Arduino actually is.

(Posted on 1/25/16)

Excellent Prototyping Board

Review by Matt
General

I love this board! It makes prototyping projects really easy as all the pins are connected to headers, once finished and it's up and running, it's time to program the ATTINY chip.

(Posted on 1/18/16)

Great for hobbyists/beginners

Review by Michael
General

While the Arduino software language has some limitations compared to C, these gadgets are great when you need to quickly develop something.

The best thing about Arduino is you can find example code for almost any application. However it would still be complicated to troubleshoot without basic programming skills.

(Posted on 1/8/16)

Easy to use.

Review by barrynash17
General

I bought this as a simple solution to program Atmel328p chips. It worked perfectly as advertised. I would recommend to anyone.

(Posted on 1/4/16)

good product

Review by geek
General

The Arduino uno turn out to be very useful for me in my project

(Posted on 1/1/16)

the arduino is good but

Review by youri
General

the mounting of the circuit is not made as it should. difficulty to introduce modules in it.

(Posted on 12/21/15)

great microcontroller

Review by Dan
General

i really enjoy the usability and portability of the arduino. its easy to implement in a test environment as well as use in a permanent installation. this is my second arduino and i will be buying more.

(Posted on 11/11/15)

Really easy to use

Review by Rok
General

Expandable board with lots of online examples for various purposes. A smartphone controlled remote control car was built in couple of weekends without any previous experiences in Arduino.

(Posted on 10/29/15)

Very good as usual!

Review by Robbie
General

I bought this to use with my Boe-Bot. Prior to using this one I was using the Arduino Yun and wanted something more simple for the Boe-Bot. It has been working great so far!

(Posted on 10/7/15)

Great

Review by Anthony
General

The board is great and works well. Is especially easy as a beginner board.

(Posted on 10/2/15)

Great!

Review by Sun
General

Very great quality! I wanna buy 10 more!!!

(Posted on 9/13/15)

Does the job!

Review by David
General

Using it for a competition, and it definitely suits our needs!

(Posted on 8/20/15)

must have

Review by WhiteFeather
General

Can never have too many Arduino Unos!

(Posted on 8/3/15)

Flexible

Review by William A
General

This was programmed by my son as I am illiterate in C. He had it working in no time and we had no problem at all. I am very happy with it. It resides in my greenhouse and so far the elements have not harmed it.

(Posted on 6/14/15)

Great board, lots of support

Review by Todd
General

I've all 3 generations of the Uno. Basic board at a great price.

(Posted on 6/4/15)

It is working well

Review by bnBenjej
General

It is working well

(Posted on 4/29/15)

Powerful board for a low price

Review by ToastTajMajal
General

I bought the Arduino board to control two micro servos, and it was so easy to set up and program that I quickly added several other features to my project. Very, very powerful board - and very reasonable priced!

(Posted on 4/27/15)

Must have

Review by Sai-Yu
General

Beginner or not, a really easy to use and reliable microcontroller.

(Posted on 3/17/15)

Excellent

Review by Samuel
General

J'utilise le arduino pour plusieurs projet. Un must !

(Posted on 3/3/15)

Wonderful

Review by Brice
General

Good product

(Posted on 2/17/15)

Excellent product

Review by David
General

Wonderful little controller. simple to use and program. care must be taken in the application not to ask it to do too much on a time sensitive process. It is however, only an 8 bit processor. It is perfect for the vast majority of small applications and when protected from external voltage spikes, it has proven to be very reliable over the long term.

(Posted on 1/27/15)

Great product

Review by Marko
General

Great product, great price.

(Posted on 1/8/15)

Perfect Starter

Review by Craig
General

Our student group uses these microcontrollers to introduce students to the basics of embedded systems software development and electrical interfacing. It suits the needs of any beginner project!

(Posted on 12/29/14)

Great

Review by Md Rizwanul
General

Amazing thing for that price

(Posted on 11/5/14)

Love it

Review by Ange
General

The Arduino Uno is an awesome little microcontroller! It's smaller than I thought it would be.

(Posted on 11/2/14)

G.O.A.T.

Review by William
General

Greatest of all time. It is user friendly, packed full of features, and versatile. I have no programming experience, and no electronics experience, and I had my prototype up and running within two weeks of coming up with the idea. These ideas aren't going to build themselves, people. GO FOR IT.

Also, robotshop was an excellent experience. Fast shipping, fair price, and authentic as can be. This arduino is my first purchase from them, but I will definitely be back for more.

(Posted on 10/31/14)

Very great micro controller

Review by Alain
General

The greatest micro controller for the price

(Posted on 10/20/14)

Great

Review by Robert
General

Great, works just as advertised

(Posted on 10/17/14)

Great Board for getting started

Review by Ted
General

Well made board. I recommend getting a genuine Arduino board (see website on fakes). Software took some learning but once I got the hang of it I was okay. Enjoyable hobby product.

(Posted on 10/14/14)

Great beginner micro controller

Review by James
General

This is a great micro controller for beginners as it is simple to use and there is a large resource base to learn from online.

(Posted on 10/5/14)

Great product

Review by TehWan
General

Good construction, does what it is intended to do. I thought it was possible to change the MCU, but I haven't been able to remove it and dare not to use too much strength either, though it seems possible. Just like any Arduino product, plug and play. Works great, but quite sensitive to short circuits, be careful. I had to plug in an external programmer to save a board.

(Posted on 9/15/14)

Did what it's supposed to do.

Review by Simon
General

Perfect for small or big project, nice calculating power and easy to use. I recommend it.

(Posted on 8/22/14)

Excellent

Review by Dardo
General

Very good product. Works very good.

(Posted on 8/20/14)

an essential and very versatile tool

Review by Kenneth
General

This Uno brings my total 'duino usage to 10. I use them from LED lighting to a temperature controlled kitten nesting box. This unit was used to monitor power to my heat pump. It is one of three connected to a Raspberry Pi server through USB or FTDI and one connected via Bluetooth.

(Posted on 8/3/14)

a good choice to start

Review by Cristiano
General

a good choice for rapid prototyping of our projects

(Posted on 7/30/14)

Everything OK quick and accurate! Excellent product ...

Review by Loris
General

Good price! and the service!

(translated from Italian with Google translate)

(Posted on 7/22/14)

Meets the users needs.

Review by Marina
General

Excellent!

(Posted on 6/26/14)

Meets the users needs.

Review by Marina
General

Meets the users needs.

(Posted on 6/26/14)

Highly recommended

Review by Corry
General

A good board for getting into Arduino programming.

(Posted on 5/8/14)

Great for beginners

Review by Zero
General

simply a great board to started in robotics

(Posted on 4/23/14)

Very easy microcontroller to get started.

Review by Andrew
General

With all the examples available for practicing, this board is idea for the first timer or someone getting back into the DIY of robotics. It's size and available accessories makes it a very versatile controller.

(Posted on 4/9/14)

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