• The new Uno is the latest version after the Duemilanove, with an improved USB interface chip. Like the Duemilanove, it not only has an expanded shield header with a 3.3V reference and a RESET pin (which solves the problem of how to get to the RESET pin in a shield) AND a 500mA fuse to protect your computer's USB port, but ALSO an automatic circuit to select USB or DC power without a jumper! The Uno is pin and code-compatible with the Duemilanove, Diecimilla and older Arduinos so all your shields, libraries, code will still work. The new R3 (3rd revision) of the UNO has a few minor updates, with an upgrade to the USB interface chip and additional breakouts for the i2c pins and an IORef pin. For more information about the UNO, the R3 and what the updates mean, please check our UNO FAQ!

    New! Each Arduino ordered from Adafruit now comes with 4 rubber bumpers that will help protect the board when you want to place it on a table. (Also keeps the Arduino from sliding around.)

    Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.


    Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The microcontroller on the board is programmed using the Arduino programming language (based on Wiring) and the Arduino development environment (based on Processing). Arduino projects can be stand-alone or they can communicate with software on running on a computer (e.g. Flash, Processing, Max/MSP).

    Read all about the Arduino project at the official website


    Dimensions (maximum):

    • 75.14 x 53.51 x 15.08mm
    • 2.96 x 2.1 x 0.59in
    • 27.95g/0.98oz

    Specs (from http://arduino.cc/en/Main/ArduinoBoardUno):



    Operating Voltage5V
    Input Voltage (recommended)7-12V
    Input Voltage (limits)6-20V
    Digital I/O Pins14 (of which 6 provide PWM output)
    Analog Input Pins6
    DC Current per I/O Pin40 mA
    DC Current for 3.3V Pin50 mA
    Flash Memory32 KB (ATmega328) of which 0.5 KB used by bootloader
    SRAM2 KB (ATmega328)
    EEPROM1 KB (ATmega328)
    Clock Speed16 MHz



    Arduino tutorial

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Arduino Uno R3 (Atmega328 - assembled)

  • Brand: Arduino
  • Product Code: Uno
  • Availability: 100
  • £23.00

  • Ex Tax: £23.00