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KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project
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KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project
The keyestudio Leonardo is a microcontroller board that eliminates the need for a secondary processor, allowing direct USB communication for versatile projects.
KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project
Item #: 12529815

KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project

89% of respondents would recommend this to a friend

Item #: 12529815

AMD 9048

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The keyestudio Leonardo is a microcontroller board that eliminates the need for a secondary processor, allowing direct USB communication for versatile projects.
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What Stands Out

Complete Kit
Includes a Leonardo R3 board and USB cable, making it a comprehensive solution for Arduino enthusiasts ready to start their projects without the need for additional purchases.
Versatile Compatibility
Designed to work seamlessly with a wide range of Arduino libraries and shields, offering flexibility for various DIY electronics and programming applications.
User-Friendly Design
Features a straightforward interface suitable for beginners and advanced users alike, enhancing the learning experience while enabling complex project development with ease.

Product Details

Shop KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project online at a best price in Armenia. B07BT1LL38
RAM Memory Installed5 MB
Memory Storage Capacity32 KB
CPU ModelAMD A Series
Processor Speed16 MHz
Connectivity TechnologyUSB
Operating SystemWindows 10
Processor BrandAtmel
Wireless CompabilityBluetooth
Compatible DevicesComputers (Windows, Mac OS X, Linux)
RAM Memory TechnologySRAM
Processor Count1
Item Dimensions L x W x H2.7"L x 2.09"W x 0.17"H (6.9 x 5.3 x 0.4 cm)
BrandKEYESTUDIO
Model NameKEYESTUDIO Leonardo R3
Built-In MediaNO
Number of Packs1
Number of Items1
UPC600346571761 606184533497 600346574199
Item Weight2.08 ounces (58.97 grams)
Manufacturerkeyes
Model NumberKE-0011
Mfr Part Numberks0248
Ram Memory Installed Size5 MB

Who Should Buy?

Suitable For
  • Beginner Programmers

    Ideal for beginners who want to learn microcontroller programming through Arduino with easy-to-use interface and examples.

  • Hobbyist Electronics

    Great for hobbyists interested in creating DIY electronics projects, providing flexibility and a variety of components.

  • Education Purposes

    Perfect for educational institutions teaching electronics and programming, offering hands-on experience with microcontroller technology.

Not Suitable For
  • Advanced Users

    Not suitable for advanced users seeking high-performance or specialized features found in professional-grade microcontroller boards.

Product Description

KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is the KEYESTUDIO Leonardo R3 Microcontroller Development Board?

    Answer: The KEYESTUDIO Leonardo R3 Microcontroller Development Board is an open-source electronics platform based on the ATmega32U4 microcontroller. It features a rich set of digital and analog pins, enabling users to easily interface with sensors, motors, and other hardware. The board's built-in USB connection allows it to communicate with a computer or other USB devices, making it ideal for projects that require real-time data transfer or control. Hobbyists and professionals alike can use it for robotics, automation, and IoT applications.
  • Question: What distinguishes the Leonardo R3 from other Arduino boards?

    Answer: The Leonardo R3 stands out due to its ATmega32U4 microcontroller, which allows it to emulate a USB keyboard or mouse directly. This capability enables unique projects where the board can send keystrokes or mouse movements to a connected computer, enhancing interactivity. Other features include additional PWM outputs and a robust USB communication protocol, which make it perfect for complex projects that require direct feedback and control, like custom gaming interfaces or automated systems.
  • Question: How can I set up the KEYESTUDIO Leonardo R3 for my project?

    Answer: Setting up the KEYESTUDIO Leonardo R3 involves connecting the board to your computer via the included USB cable, installing the Arduino IDE, and selecting the correct board and port settings. Once set up, you can load example sketches to test the board’s functionality. This simple setup makes it suitable for beginners, allowing them to dive into coding with various libraries, while advanced users can integrate the board into larger, more complex systems, such as home automation setups.
  • Question: What types of projects can I build with this board?

    Answer: With the KEYESTUDIO Leonardo R3, users can create diverse projects including robotics, IoT applications, and interactive installations. For example, it can drive motors for a balanced robot, control LEDs for light displays, or read data from sensors like temperature or motion detectors. The board's versatility and USB interface open up possibilities for innovative creations in coding, electronics, and creative arts, making it a popular choice for educational environments as well.
  • Question: Is the KEYESTUDIO Leonardo R3 compatible with other Arduino shields?

    Answer: Yes, the KEYESTUDIO Leonardo R3 is compatible with a wide array of Arduino shields that conform to Arduino standards. This compatibility allows users to expand their projects by stacking shields for added functionality, such as connecting motor drivers, GPS modules, or display screens. This feature significantly enhances the board's adaptability, making it suitable for both simple and complex projects without the need for additional circuitry.
  • Question: How do I program the Leonardo R3 board?

    Answer: You can program the KEYESTUDIO Leonardo R3 using the Arduino IDE, a straightforward environment with extensive resources for beginners and advanced developers. Simply connect the board to your computer, select it in the IDE, and write your code or upload existing sketches. The IDE supports various libraries and examples that demonstrate how to utilize the board's pins and functions, streamlining the coding process for applications ranging from basic LED blinking to sophisticated sensor integration.
  • Question: What software libraries are recommended for beginners?

    Answer: For beginners using the KEYESTUDIO Leonardo R3, the Arduino IDE supports numerous libraries essential for starting projects. Recommended libraries include Servo for motor control, Wire for I2C communication, and LiquidCrystal for interfacing with LCD screens. These libraries reduce complexity by abstracting the lower-level coding details, allowing users to focus on applying their creativity, whether for simple robotic systems or elaborate display interfaces.
  • Question: Can I connect this board to my smart devices?

    Answer: Yes, the KEYESTUDIO Leonardo R3 can be connected to smart devices using appropriate communication protocols. By utilizing modules such as Wi-Fi or Bluetooth shields, users can create a bridge between the board and smart technologies. For instance, you can control lighting or appliance systems via mobile apps or integrate it with home automation platforms, making it a versatile choice for creating interconnected smart environments.
  • Question: What accessories come with the Leonardo R3 Kit?

    Answer: The KEYESTUDIO Leonardo R3 Microcontroller Development Board typically comes with a USB cable for connection to a computer, which is essential for programming and powering the board. Additionally, the kit may include jumper wires, a breadboard for circuit prototyping, and various electronic components such as LEDs, resistors, and sensors, providing a comprehensive starting point for hobbyists to explore various projects right out of the box.
  • Question: Where can I buy the KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project in Armenia?

    Answer: You can purchase the KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project through Ubuy in Armenia. Ubuy is a reliable e-commerce platform that offers a variety of electronic components and development boards, ensuring you have access to quality products and a seamless shopping experience. Simply visit the Ubuy website to find the Leonardo R3 and explore your options.

KEYESTUDIO Single Board Computers KE-0011 Editorial Review

KEYESTUDIO Leonardo R3 Microcontroller Development Board with USB Cable Kit for Arduino Project is a powerful and versatile option for your Arduino projects. This board, featuring a compact size of 50x70mm that matches the Genuino Uno, allows for easy prototyping with its 20 digital input/output pins, which can be expanded to 22 using SDA and SCL. The built-in UART-USB-Serial interface simplifies programming, and users appreciate the solid performance when creating various sketches. The included USB micro cable adds convenience, ensuring a secure connection. However, it’s noted that the edge connector design may require additional adapters for breadboarding, which can be a minor inconvenience for advanced users.

Customer Reviews & Ratings

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Pros

  • Compact size of 50x70mm fits well with Genuino Uno
  • 20 input/output pins expandable to 22
  • On-board UART IC simplifies serial programming
  • Sturdy USB micro connector for secure connections
  • Good performance for various Arduino sketches

Cons

  • Edge connector design may require additional adapters

Platform Trust & Buyer Confidence

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10 September 2026 · via Trustpilot
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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Order now and get it around Friday, October 02

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Features & Benefits

  • Based on the ATmega32u4 microcontroller.
  • Offers 20 digital input/output pins and 12 analog inputs.
  • 16 MHz crystal oscillator and micro USB connection.
  • Built-in USB communication enables direct connection to PC as mouse and keyboard.
  • FCC and CE certified for environmentally friendly production.
  • Includes power jack, ICSP header, and reset button.

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