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

4.5/5
Product ID: 60379488
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Details

  • Brand
    KEYESTUDIO
  • Ram Memory Installed Size
    5 MB
  • Memory Storage Capacity
    32 KB
  • CPU Model
    5X86
  • CPU Speed
    16 MHz
16 MHz Speed
🌱Eco-Friendly Certs
🔌USB Connectivity

Description

🚀 Unleash Your Creativity with Leonardo!

  • USER FRIENDLY SETUP - Easily configure with Arduino IDE for hassle-free programming.
  • ECO CONSCIOUS DESIGN - FCC and CE certified, made with environmentally friendly materials.
  • COMPACT LIGHTWEIGHT - Weighs only 2.08 ounces, perfect for portable projects.
  • VERSATILE I O OPTIONS - 20 digital I/O pins, including 7 PWM outputs for diverse project needs.
  • SEAMLESS USB INTEGRATION - Built-in USB communication for direct connection to your computer.

The KEYESTUDIO Leonardo R3 Microcontroller Development Board is a powerful and compact platform based on the ATmega32u4, featuring 20 digital I/O pins, 12 analog inputs, and built-in USB communication. Ideal for Arduino projects, it offers seamless integration with your computer, eco-friendly certifications, and a user-friendly setup, making it a must-have for tech enthusiasts and professionals alike.

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Specifications

Standing screen display size3.42 Inches
Processor16 MHz 5x86
RAM1 GB no
Wireless TypeBluetooth
BrandKEYESTUDIO
Item model numberKE-0011
Operating SystemWindows 10
Item Weight2.08 ounces
Product Dimensions2.7 x 2.09 x 0.17 inches
Item Dimensions LxWxH2.7 x 2.09 x 0.17 inches
Colorleonardo r3
Number of Processors1
Computer Memory TypeDDR3 SDRAM
Voltage5 Volts
Manufacturerkeyes
LanguageEnglish
ASINB0786LJQ8K
Country of OriginChina
Is Discontinued By ManufacturerNo
Date First AvailableNovember 13, 2017

Have a Question? See What Others Asked

is this leonardo HID compatible?
Is this the same as a normal leonardo, or does the "development" in the name imply some other functionality?
will this device run micropython?
Is there a program to be installed?

Reviews

4.5

All from verified purchases

M**E

I did extensive testing and found no defects

Overview: I am pleased w/ this purchase. I use it as an "Uno substitute": its useful for prototyping, but I'm unlikely to use as the final MCU in a project. It is 50x70mm, matching the board size of a Genuino Uno.Details and testing:Packaging: Arrived in a Keyestudio display (cardboard) box, inside a 2nd crush-resistant cardboard box. The package includes a serial cable.Appearance: The board has "spiffy" yellow labelling and yellow headers on a black background.Components & electrical testing: The microprocessor, in the 44-pin TQFP form factor, is labelled "Atmel mega32U4, -MU, 2335 PU". On-board voltage regulator is the AMS1117-5v. With a 9-v battery plugged to the barrel jack (or the Vin pin), Vout is 5.04v.Functional testing:(a) Program upload: With a 9-v battery attached, the on-board LED flashed at 1 Hz, implying the "blink sketch" is running and the Bootloader is present. No need to install other software (e.g., QMK firmware). I opened the Arduino IDE, plugged in the serial cable, then checked Tools|Port. The IDE recognized the board as "COM# (Arduino Leonardo)".(b) UART-USB-Serial interface: Unlike some 32U4 boards, this MCU has on-board UART IC, making serial programming easy. I selected Tools|Board|Arduino AVR boards and chose "Leonardo". I created & uploaded a "Hello World" sketch and opened a serial window => success.(c) Analog pins/ADC: The ADC and all analog pins were functional. I created ~2v at the mid-pt of a voltage divider and measured the value returned from the A0 pin. The value was in the expected range (422, corresponding to 2.2v, w/ similar values fr pins A1-A5, as well as, a Genuino Uno).d) PWM pins: I successfully made LEDs attached to PWM pins (3, 5, 6, 9, 10, & 11) fade.e) Memory: successful access to flash [32kb (28.7kb+bootloader)], SRAM (2.5kb) and EEPROM (1kb), confirming the expected values.

O**N

micro:bits are amazing, but don’t fit in a breadboard without an adapter

You probably won’t be able to figure it out by looking at it but this is a serious little computer. It contains a Nordic Semi nRF51822 ARM Cortex-M0 microcontroller which, for those who don’t know, is quite powerful in addition to containing a BTLE radio. I never thought I’d see this chip on an educational board for 6th graders because it’s usually rather serious stuff that’s more difficult than average to program.Don’t be fooled by the 6th grade graphical programming interface. This thing could be used by embedded systems engineers to prototype a variety of Bluetooth products using any Bluetooth profile that exists, yet Microsoft MakeCode has made it easy enough for kids with no special knowledge to program. (Of course MakeCode can’t be used to do everything you could do with C and ARM CMSIS, but I’m still impressed with what you can do which includes some limited radio communication and extensions built by third parties like AdaFruit.)The only thing I don’t like about it is the edge connector, which is great for working with alligator clips and 3 GPIO pins, but if you need access to the other pins you’re really going to need a female edge connector which will cost you about $10 for the breadboard adapter version. Other small microcontroller boards either have bottom male header pins that will plug directly into a breadboard or they have top female headers that can easily be used with jumper wires.So for the most part this is just great, but I think they really should have tried harder to come up with a breadboardable design that doesn’t require an edge connector. I can think of some ways to get both pin headers and alligator clip pads on the same board. Breadboard connections are essential for going beyond the basics which older kids and adults are sure to want to do if this is their first board.So buy this if you:- Want an easy to code board that uses MakeCode- Want a board with some nice features like the LED matrix and the accelerometer- Want a nRF51822 with Bluetooth capabilityDon’t buy this if you want something you can breadboard and get more advanced with right away. Instead I’d recommend buying an arduino breadboard kit with jumper wires and accessories.The KEYSTUDIO kit is a good one, everything was brand new and as expected. The battery pack is essential if you want to use this primarily with an iPad.

A**R

Great little unit

Works perfect, been learning stuff on Uno and wanted try making a sim racing button box so needed something with HID capability. Using this with Simhub made that very easy. This board is perfect for developing HID devices.

M**L

Great

Used it for a project for school. It worked perfectly as intended.

S**I

Nice development board for doing POC projects

keyestudio Leonardo R3 Development Board came nicely packed without any damage.Et has got 23 digital Input/Output ports and 7 PWM ports and 12 analog input ports.This development board is great prototyping tools for the electronic projects and this can be used by connection it to a computer with a USB cable or power it with and AC to DC adapter, And this development board comes with USB Cable

F**Y

Solid Leonardo

Got this so I could wire an analog joystick to a PC with the Leonardo being seen as an HID. Worked awesome when I flashed it with a program containing the joystick.h library. Came right up as a game controller on Windows.

I**A

Bueno

Lo recomiendo

J**N

Locks up when trying to program.

Locks up when trying to program. Selected Arduino Leonardo, press upload, leds flash for a bit, then the board does a full reboot releases the com port and comes back, Arduino IDE times out with an error "unknown programmer response"

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

Keyestudio Leonardo R3 Microcontroller Development Board With Usb Cable Kit | Desertcart Thailand