Arduino Uno Mini – Limited Edition

Hobby-making, future-shaping, designing & problem-solving


In celebration of the 10th anniversary of the Arduino UNO, the company has released the Arduino UNO Mini, a miniature version of the flagship board. The ATMega328P and ATMega16U2 processors remain, but a USB-C connector has been added. It's a must-have for Arduino enthusiasts, including hobbyists, students, makers, and dreamers. This Arduino UNO is unlike any other in every way. It's not just the board's stunning new black and gold design that makes it so appealing. When it comes to quality and the materials used, there are no compromises.

Arduino Uno Mini


Each board is serially numbered, and each product comes with a hand-signed letter from the company's founders. From the device itself to its construction, packaging, and even the printing on the packaging, everything about the UNO Mini Limited Edition screams high quality. Who knows how much an unopened UNO Mini Limited Edition will be worth in the future?

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Numero UNO in the Maker Space

Arduino Uno Mini After five years, the Arduino project decided to release version 1.0 of its IDE software in 2010 and named it "Uno." "Uno" translates to "one" in Italian. More than a decade after its introduction, the Arduino UNO continues to be the most popular microcontroller among makers. They have just celebrated selling their 10 millionth board.

It's important to note that this is a normal UNO in every other respect. It has the same processor, pinouts, and performance as the popular UNO, making it a worthy successor. There are, however, a few new features that we think you'll find very appealing.

USB-C port is probably the first item you noticed when you opened the box. This is a welcome improvement, especially in light of the smaller overall size. There are plenty of USB-C cables lying around these days, so it's a lot easier.

Then there's the size of the device. The size of the UNO Rev 3 is nearly identical to that of previous versions, which can be traced all the way back to the original concept. The UNO Mini Limited Edition is just 34.2mm x 26.7mm x 8mm in size, a fourth of the original footprint. It comes with 1.27mm pitch headers instead of the usual 2.54 pitch header to keep the same number of I/Os as the original board.

Arduino Uno Mini Application Examples

The Arduino UNO has been scaled down to create the UNO Mini. The Arduino UNO Mini Limited Edition is a sought-after memento for enthusiasts of the open-source microcontroller. In spite of its diminutive size, it has both an ATmega328P and an ATMega16U2 microcontroller, in addition to the usual array of digital and analog inputs and outputs, USB, ICSP, and a reset button.

Everything you need to get started with Arduino is included on this board. This is the standard development board for the industry. As the brain of many PLCs, the Arduino UNO Mini board can be found in a variety of businesses and industries.

This board is ideal for a wide range of educational and scientific endeavors. High standards and excellent performance make the board an excellent resource for capturing real time data from sensors and for activating complicated laboratory equipment, to name only two applications.

Arduino Uno Mini Board Topology


ATmega328P running at up to 20 MHz is the main processor. However, a small number of its pins are allocated for internal communication with the USB Bridge coprocessor. Install the Arduino Desktop IDE if you want to use your Arduino UNO Mini offline. You'll need a Type-C USB cable to connect the Arduino UNO Mini to your computer. The LED on this board serves as a power indicator.

A web-based editor for the Arduino Installing a simple plugin makes any Arduino boards, including this one, work on the Arduino Web Editor. In order to keep the Arduino Web Editor up-to-date with the most recent features and support for all boards, it is hosted online. Your sketches will be uploaded to your board as soon as you start coding.

For all Arduino IoT equipped items, the Arduino IoT Cloud may be used to log, graph, and analyze sensor data as well as trigger events to automate your home or workplace. The "Examples" menu in the Arduino IDE or the "Documentation" part of the Arduino Pro website both have examples for the Arduino UNO Mini.

Arduino Uno Mini Pinout

Getting Started with the Arduino Uno Mini

Learn how to set up your board and get started with coding and electronics in the Getting Started part of the Arduino Wiki. UNO Mini LE is an ATmega328P microcontroller board for Arduino UNO Mini (datasheet). In addition to the 14 digital inputs and six analog inputs, the device includes a 16MHz ceramic resonator, a USB-C port, and a reset button. Everything you need to run the microcontroller is included. To get started, all you need is a USB Type-C cord, a power converter, or a battery.

Arduino Uno Mini Size


This is a completely functional UNO in every way, with all the features you've come to expect. Hardcore Arduino fans, on the other hand, will treasure this board for its rarity and collectability.

Resources & Downloads The Getting Started section contains all the information you need to configure your board, use the Arduino Software (IDE), and start tinkering with coding and electronics. For the full technical documentation, tutorials and much more, visit the Arduino Docs.

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