SKU: 66181828282

SparkFun Arduino Uno - R3 Boards

Sale price$2173.50 Regular price$2415.00
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Description

SparkFun Arduino Uno - R3 BoardsThis is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc. The Uno R3 also adds

This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.

The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.

Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).

Note: The Arduino Uno R3 requires the Arduino 1.0 drivers folder in order to install properly on some computers. We have tested and confirmed that the R3 can be programmed in older versions of the IDE. However, the first time using the R3 on a new computer, you will need to have Arduino 1.0 installed on that machine. If you are interested in reading more about the changes to the IDE, check out the official Arduino 1.0 Release notes!

Not sure which Arduino or Arduino-compatible board is right for you? Check out our Arduino Buying Guide!

Features:

  • ATmega328 microcontroller
  • Input voltage - 7-12V
  • 14 Digital I/O Pins (6 PWM outputs)
  • 6 Analog Inputs
  • 32k Flash Memory
  • 16Mhz Clock Speed

Documents:

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SKU: 66181828282

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4.4 ★★★★★
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Missy Stanis
Belleville, US
★★★★★ 4
Good Quality Case!
Color: 1-Navy Blue, Color: 1-Navy Blue
Very durable & nice color. I like that it puts iPad to sleep when closed and wakes when it is opened! It is pretty sleek on the back so holding it up is kind of hard without it slipping out of my hand, that’s the only reason for 4 stars. Otherwise, great case!
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Reviewed in the United States on March 25, 2026
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LDC
Pawtucket, US
★★★★★ 5
Very protective iPad case
Color: 1-Navy Blue
This MoKo iPad case is excellent! It fits perfectly and provides great protection without adding bulk. The navy blue color looks very sleek, and the translucent back shell is a nice touch. It’s super magnetic, with great padding. The smart cover works flawlessly with the auto wake/sleep feature, and the cutouts line up perfectly for Touch ID. Lightweight, durable, and a fantastic value!
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Reviewed in the United States on May 24, 2026
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Denny
Battle Creek, US
★★★★★ 5
Great Protective Case for My Mother’s iPad
Color: 2-Watermelon Red, Color: 2-Watermelon Red
I bought this case along with my mother’s new iPad, and it was the perfect choice. The watermelon red color looks beautiful with the pink iPad and gives it a very clean and stylish look. The case feels sturdy without adding too much weight, which makes it comfortable for her to carry around and use every day. The stand feature works really well for watching videos, reading, and video calls. I also like that the case supports the auto wake and sleep function, which makes the iPad feel even more convenient and easy to use. The cutouts fit perfectly, and Touch ID still works without any issues. The translucent back is a nice touch because it still lets the iPad color show through while keeping it protected from scratches and bumps. Overall, this case exceeded expectations and makes a great addition for anyone wanting both protection and style for their iPad.
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Reviewed in the United States on May 14, 2026
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Michelle Billows
Dallas, US
★★★★★ 5
Overall, it’s a great everyday case that looks good and does exactly what you need it to do.
Color: 1-Navy Blue
I really like this iPad case. It’s super lightweight but still feels protective, and the clear back gives it a clean, modern look. It snapped on easily and fits perfectly, with all the buttons and Touch ID working just like they should. Overall, it’s a great everyday case that looks good and does exactly what you need it to do.
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Reviewed in the United States on April 8, 2026
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Pam P
Lexington, US
★★★★★ 5
Nice, fits perfectly
Color: 1-Navy Blue
Good value and perfect fit. I don’t care about the color so I bought the least expensive. It’s a nice blue.
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Reviewed in the United States on May 26, 2026

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