Arduino Uno - R3

Arduino Uno - R3 Australia
Arduino Uno - R3 Australia Arduino Uno - R3 Australia Arduino Uno - R3 Australia Arduino Uno - R3 Australia
Product ID: SF-DEV-11021


We have 56 units of the Arduino Uno - R3 in stock at our Sydney warehouse.

If ordered before 2pm, this part would be delivered on or before Wednesday, Apr 24 to most parts of Australia.

We can get a further 1588 units from Arduino Australia.
If you order today we can dispatch this stock between Wednesday, Apr 17 and Wednesday, Apr 24 2019.

Updated 13 days ago
Data Sheets & Documents
Updated about 1 year ago
Updated 13 days ago
Arduino's Description of the Arduino Uno - R3


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!


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


Arduino Uno - R3 is listed in:
Arduino Uno - R3 Guides
Program an Uno with Raspberry Pi

The Raspberry Pi and Arduino are both popular boards, but each are better suited for different things. That said, why not combine the two?

In this guide, you will learn to connect an Arduino UNO to the Raspberry Pi and program it from an Arduino IDE within Raspbian. A Raspberry Pi 3 Model B+ is used here but the instructions are the same for any other board. We will build a circuit using a breadboard, and write a sketch on the Arduino IDE that will have LEDs lighting up.

Once you've mastered the basics, you are one step closer to working on more advanced projects that requires the use of both boards. These could include a smart home, or smart jukebox among many other projects.