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Arduino UNO R2

by Arduino
| 2 answered questions

Available from these sellers.
  • Clone of Arduino UNO R2 board
  • ATmega328P DIP (Through hole) microcontroller
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1 new from $21.99


Product Information

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Brand NameArduino
Item model numberA000046
Item Dimensions L x W x H3 x 2 x 0.50 inches
  
Additional Information
ASINB004CG4CN4
Shipping Weight2.1 ounces
Date First AvailableNovember 15, 2010
  
Warranty & Support
Amazon.com Return Policy: You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellableRead more condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.
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Product Description

The Arduino Uno R2 is a microcontroller board based on the ATmega328. 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 USB cable or power it with a AC-to-DC adapter or battery to get started.

Customer Questions & Answers

Customer Reviews

I am learning to program this Arduino One.
R. V. Cadena
I would recommend this micro-controller to anyone wanting to get into the basics of Arduinos and just gain general knowledge of electronics.
Killroy7777
Looking into the Arduino, I found there was a huge online community with plenty of tutorials, examples, and forums.
W. H. Blohm

Most Helpful Customer Reviews

160 of 164 people found the following review helpful By Jack Gregory on January 8, 2012
I received a counterfeit Arduino with a Sain Store business card enclosed, which I returned unopened. These are clones that are made to look like official boards, and DO NOT MATCH the image on the web page. The thing that bothers me is the web page for this item says "Official board made in Italy". This is why I bought it, but it is false.

They will just end up giving the Arduino Project's work a bad name, and I cannot support them. I did not receive a surface mount board like others have. Clones are perfectly legit, but it is wrong to pretend to be an official board and not have a manufacturing location marked on them, and then cleverly alter the official Arduino markings to say "Designed in Italy" instead of Made in Italy.

As an aside, it wasn't the latest revision R3, but an R2 board, but at least the web image was an (Offfical) R2. Just buy an official board. Support the good work of the Arduino project.
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50 of 51 people found the following review helpful By Patrick on January 4, 2012
Verified Purchase
The uno I received from Sain Store works fine and I have no intention on returning it. That being said, it was not an authentic Arduino UNO, It was a clone with significantly different markings on it. (# to denote pwm instead of ~, lower res printing, not in arduino box, does not say "Made in Italy". It is most definitively a clone, if you don't mind that go ahead and get it, but be advised it is not a genuine arduino.
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34 of 37 people found the following review helpful By Mr. Kenneth G. Davies on December 8, 2011
Verified Purchase
Be warned.

You may not receive what you paid for.

I ordered this unit and received a lower-priced Arduino with a surface-mounted microprocessor, not the far larger microprocessor shown above that is mounted in a holder and so can be replaced by other microprocessors.

There was no explanation of this action by the supplier.

I posted a one-star review, but this seems to have been removed after a sly "comment" was added suggesting that it did not belong in this section because it was not a comment on the quality of the item I received (a real Catch-22! presumably from the supplier).

So make sure that what you receive is what you ordered.
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14 of 14 people found the following review helpful By LarryL on February 18, 2012
Verified Purchase
I have to agree with the others who have posted that their Arduino Uno purchase from the Sain Store was probably a clone (I'll use a nice term for it). Little things indicate it. Like the packaging and the Design in Italy on the board silkscreen instead of made in Italy.

Best case, it was not an R3 board, but an earlier version.

Worst of all, though, was that USB connectivity was sporadic to non-existent. I couldn't reliably connect it to my computer.

Rather than fight it, I purchased an official R3 board from Mouser. It came in an official sealed Arduino box, and is an R3 board. The silkscreen says made in Italy. The best part is, this board works.
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13 of 13 people found the following review helpful By Mace Moneta on January 18, 2012
Verified Purchase
I ordered this for a project, and received a non-functioning R2 DIP version, in OEM packaging (just an anti-static bag, no box). Maybe it was a return from someone else? Who knows. It came with a USB cable, even though the listing explicitly says no cable. I guess the cable was compensation for the bad Arduino. These cost so little, it's not worth the shipping to return it. From the other comments, it looks like this is a pot-luck item. I think I'll stick to ordering from Sparkfun or Adafruit - they charge more, but at least you know what you're getting.
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12 of 12 people found the following review helpful By Mutts202 on December 14, 2011
Verified Purchase
Arduino is awesome, and I'm psyched to start some cool new projects with my Uno.

NOTE TO BUYERS: This listing is for the Arduino Uno SMD edition, meaning the microcontroller is surface mounted, rather than socketed (as is shown in the product image). Both the socketed and SMD edition are functionally identical, with one difference:

if you want to use the Arduino Uno board to program an Arduino Mini board (without having to additionally buy the Mini USB/Serial Adapter), you can simply remove the socketed chip and run jumpers to the Mini. But with the SMD version, you can't remove the socketed chip to do this.
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35 of 42 people found the following review helpful By Michael Angeli on January 3, 2011
Verified Purchase
I got this to do some cool homegrown programming stuff. :)

Its everything I wanted and needed. Love this little thing.

The only thing I wish was more clear was that you are ONLY buying the Arduino board. I was slightly confused as to what came in the package and if I would need to buy separate wires. It wasn't a problem, but I would have ordered the wires if I had known instead of having to run to [Expensive Store With Clueless Employees].
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41 of 50 people found the following review helpful By Roberto M. Pensotti on April 7, 2011
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Arduino is conquering the world of electronics experimenters.
I tried with PICS, BASIC stamps and other prototyping boards, but Arduino is the easiest and most flexible for beginners and intermediate hobbyist.
Don't miss their site: [...]
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