Arduino Uno Rev 3

Arduino Uno Rev 3

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Development Boards & Kits - AVR Arduino Uno Rev 3



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Arduino Uno is a microcontroller board based on the ATmega328P datasheet .

It has 14 digital input/output pins of which 6 can be used as PWM outputs , 6 analog inputs, a 16 MHz ceramic resonator CSTCE16M0V53 R0 , 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.


You can tinker with your Uno without worrying too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.

"Uno" means one in Italian and was chosen to mark the release of Arduino Software IDE 1.0.

The Uno board and version 1.0 of Arduino Software IDE were the reference versions of Arduino, now evolved to newer releases.

The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.

Related Boards

If you are interested in boards with similar functionality, at Arduino you can find:

  • Arduino Uno Rev3 SMD
  • Arduino Uno WiFi Rev2
  • Getting startedThe Getting Started with Arduino Uno page contains all the information you need to configure your board, use the Arduino Software IDE , and start tinkering with coding and electronics.

    From the Tutorials section you can find examples from libraries and built in sketches as well other useful information to expand your knowledge of the Arduino hardware and software.

    Find inspiration for your Uno projects from our tutorial platform Project Hub.

    Need Help? Check the Arduino Forum for questions about the Arduino Language, or how to make your own Projects with Arduino.

    Need any help with your board please get in touch with the official Arduino User Support as explained in our Contact Us page.

    WarrantyYou can find here your board warranty information.

    Arduino Uno Rev 3
    • Dimensions - 68.6 mm x 53.4 mm
    • Product - Base Boards
    • Brand - Arduino
    • Core - AVR
    • Data Bus Width - 8 bit
    • Manufacturer - Arduino
    • Operating Supply Voltage - 5 V
    • Product Type - Development Boards & Kits - AVR
    • Standard Pack Qty - 50
    • Subcategory - Development Tools
    • Tool Is For Evaluation Of - ATmega328P