Arduino Leonardo with Headers [A000057]

(798 Reviews)

Price
$12.90

Quantity
(10000 available )

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88 Ratings
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Reviews
  • Deb

    > 3 day

    Works great

  • Mark D.

    > 3 day

    You really cant go wrong with a Leonardo board! Its got the same chip as the practice Esplora board which means built-in USB HID capabilities! Ive replaced all my Unos with these for that reason. Great upgrade!

  • NWA Dad

    > 3 day

    $35 Leonardo board. Its a great board, no complaints, but if I had to do it over again, Id but the $25 UNO board.

  • Ray

    > 3 day

    Picked up for learning purposes as well as for fun. Electronics have been a hobby for a long time now and I wanted to go further than just simple projects. There is so much online support for open source hardware that if you get stuck someone may be able to help you out.

  • jwadli

    > 3 day

    This is the first authentic Arduino Ive bought and Im glad I did. Copies are adequate but pin labels, silk screen, etc. are much nicer on the Italian board. I especially like the plastic half shell. Very small difference in price. Amazon orders direct from Arduino.

  • Darrell Janesak

    > 3 day

    Great price for this product.

  • Robert L. Pendergast

    Greater than one week

    I like these micro controllers. Prices vary since the hard and software is open source. Of course the originals are very well made; so are many others. This item was a gift.

  • Jonathan Ortega

    > 3 day

    Stunning Features Arduino, you can develop systems where the limit is the imagination for a low price and many accessories, excellent development environment, practical and easy to program. Excellent miniature computer.

  • Mark Burfeind

    > 3 day

    I needed this for my school project and it worked perfectly! I will be buying more soon!

  • Gary Samad

    09-06-2025

    Great board that is the core of my multi-board project. Was able to reduce power consumption with careful code to less than 8 milliamps, and with my solar powered battery it should be able to run forever without replacing batteries. The Leonardo was the best at power savings compared to several other Arduinos that I tried including the Uno, Nano, and Mega.

About UsAbout Us

ABOUT ARDUINO

Arduino is the world’s leading open-source hardware and software ecosystem. The Company offers a range of software tools, hardware platforms and documentation enabling almost anybody to be creative with technology.

Originally started as a research project by Massimo Banzi, David Cuartielles, Tom Igoe, Gianluca Martino, and David Mellis at the Interaction Design Institute of Ivrea in the early 2000s, it builds upon the Processing project, a language for learning how to code within the context of the visual arts developed by Casey Reas and Ben Fry as well as a thesis project by Hernando Barragan about the Wiring board.

WHY ARDUINO?

Why1Why1

Why2Why2

Why3Why3

Why4Why4

Inexpensive

Arduino boards are relatively inexpensive compared to other microcontroller platforms. The least expensive version of the Arduino module can be assembled by hand, and even the pre-assembled Arduino modules cost not so high.

Simple, clear programming environment

The Arduino Software (IDE) is easy-to-use for beginners, yet flexible enough for advanced users to take advantage of as well. For teachers, it"s conveniently based on the Processing programming environment, so students learning to program in that environment will be familiar with how the Arduino IDE works.

Open source and extensible software

The Arduino software is published as open source tools, available for extension by experienced programmers. The language can be expanded through C++ libraries, and people wanting to understand the technical details can make the leap from Arduino to the AVR C programming language on which it"s based. Similarly, you can add AVR-C code directly into your Arduino programs if you want to.

Open source and extensible hardware

The plans of the Arduino boards are published under a Creative Commons license, so experienced circuit designers can make their own version of the module, extending it and improving it. Even relatively inexperienced users can build the breadboard version of the module in order to understand how it works and save money.

ARDUINO CLASSICS

Classics BackgroundClassics Background

Message from Massimo Banzi - co-founder

“The Arduino philosophy is based on making designs rather than talking about them. It is a constant search for faster and more powerful ways to build better prototypes. We have explored many prototyping techniques and developed ways of thinking with our hands.”

MOST POPULAR OF CLASSICS

Arduino UnoArduino Uno

Arduino DueArduino Due

Arduino LeonardoArduino Leonardo

Arduino MegaArduino Mega

Arduino Uno R3

The ideal board for getting started with electronics, through fun and engaging hands-on projects.

Arduino Due

Perfect for powerful larger scale projects, the Arduino Due is based on a 32-bit ARM core microcontroller.

Arduino Leonardo with Headers

Microcontroller board based on the ATmega32u4 that has built-in USB communication.

Arduino Mega 2560 Rev3

Designed for your most ambitious projects which require additional pins and extra memory. Ideal for devices like 3D printers.

ARDUINO CREATE

CreateCreate

Connect, Create, Collaborate

Arduino Create is an integrated online platform that enables Makers and Professional Developers to write code, access content, configure boards, and share projects. Go from an idea to finished IoT project quicker than ever before. With Arduino Create you can use an online IDE, connect multiple devices with the Arduino IoT Cloud, browse a collection of projects on Arduino Project Hub, and connect remotely to your boards with Arduino Device Manager. As well you can share your creations, along with step-by-step guides, schematics, references, and receive feedback from others.

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