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Numero UNO

Timeless icon
Miniature size
Limited edition

A miniaturized, limited edition of the classic Arduino UNO to celebrate 10 million boards and countless projects across the world.

A unique board, with premium materials, quality finishing, elegant design and packaging. Featuring 14 digital inputs/outputs (six of which can be used as PWM outputs), six analog inputs, a 16MHz ceramic resonator, a USB-C connector and a reset button.

Each item is unique and numbered on the PCB, and includes a signed letter from the Arduino founders. 



The Arduino UNO is a microcontroller board based on the ATmega328P (datasheet). It has 14 digital inputs/outputs (six of which can be used as PWM outputs), six analog inputs, a 16MHz ceramic resonator, a USB-C port and a reset button. It contains everything needed to support the microcontroller. Simply connect it to a computer with a USB cable, power adapter or battery to get started. 

New Mini Form Factor

The UNO you know and love, in a brand new mini form factor.
34.2mm x 26.7mm x 8mm

Limited Edition

Individually numbered limited edition PCBs, and beautifully designed black and gold packaging.


Includes a USB-C socket for power, programming and a more compact connection.


Hobbyists, students, makers, re-imaginers, dreamers, hopers, fans, engineers, designers, questioners, problem-solvers, puzzlers, gamers, developers, entrepreneurs, architects, future-shapers, musicians, scientists.

These are the people who have contributed to this incredible story, and we want to celebrate our first 10 million Arduino UNO boards with you all.

Ten million thank yous.

Get inspired by some of the most exciting projects
ever built with Arduino’s iconic board

The Toothbrush Machine

Are you tired of brushing your teeth, old style? Put a robot arm and a toothbrush on a skateboard helmet and program it to brush your teeth. No more poor dental hygiene! 

A computer hardware orchestra that plays Nirvana's songs

This is a free head-banging zone! Floppotron is a computer hardware orchestra playing Smell like teen spirits from Nirvana and many more tunes!

Make your portrait with 8000 coffee drops

 A printer that will make a portrait out of thousands of coffee drops. Turn your leftover coffee into art!

The Arduino UNO Mini Limited Edition works exactly as the classic UNO, so it can be used for any projects where you would use a regular Arduino UNO.

Arduino UNO Mini Limited Edition is here


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