How can I burn the Bootloader? Mine has stopped being recognised in windows

you have probably lost bootloader look on Internet to reset and restore the bootloader

Does it works on Windows? Or only Linux?

Hi there, I use this with windows and it works completely fine. You just need to download the windows version of the IDE. :)

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KEYESTUDIO Leonardo R3

Product ID: 189072927

Details

Brand
KEYESTUDIO
Model name
ATMEGA32U4-AU
RAM memory installed size
5 MB
Memory storage capacity
32 KB
CPU model
Intel Core i9

⚡40mA max current per 5V I/O port

🔌23 digital I/O & 7 PWM ports

🛠️ATMEGA32U4 original chip

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197 zł

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In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Power your innovation with the Leonardo R3 – where precision meets style!

ROBUST I O PORT ARSENAL - Access 23 digital I/O ports, 7 PWM channels, and 12 analog inputs for versatile project possibilities.
SLEEK FUNCTIONAL DESIGN - Striking yellow-black aesthetic combined with a compact 6.85 x 5.3 cm footprint fits perfectly on any workspace.
POWER OPTIMIZED PERFORMANCE - Supports up to 40mA on 5V ports and 50mA on 3.3V ports, ensuring reliable power delivery for your components.
CERTIFIED ECO FRIENDLY BUILD - FCC & CE certified with environmentally conscious manufacturing—tech that’s responsible and reliable.
SEAMLESS ARDUINO IDE INTEGRATION - Effortlessly program with full compatibility to Arduino Leonardo boards—no compilation errors when set up right.

The KEYESTUDIO Leonardo R3 is a compact, ATMEGA32U4-based microcontroller development board fully compatible with Arduino Leonardo. Featuring 23 digital I/O ports, 7 PWM outputs, and 12 analog inputs, it supports a 5V working voltage with robust current handling. Certified FCC and CE, it combines eco-friendly manufacturing with a distinctive yellow-black design, making it ideal for professional makers and developers seeking reliable, versatile prototyping hardware.

Reviews

H**E

Great prototyping device at a great price

This bit of kit is an enabler for all those who either have low level microprocessor development back grounds but no access to the kit anymore or those that are brand new to the fun and games. It is a well made piece of kit that, as far as I can tell fully conforms. Good stuff!

14.12.2022

K**S

Seems to be as good as the arduino

Just like the real thing and worked with the arduino IDE fine

7.04.2024

G**N

Nice product

Works well and has compatibility with all the extras which assist with connectivity. Well made and included the cable to connect via USB. Nice board. Leonardo is catered for within the Boards offered by the Arduino when downloading sketches.

27.12.2020

A**S

quick response

very good

23.02.2021

J**Y

Supported by all programs I've tried

Wasn't expecting it to work with official software but it does! I bought this to mod a item I own and I've had no issues with it so far and I've been using it for more than 6-7 months now. In conclusion 10/10 product would recommend.

18.07.2023

X**S

Perfect

Mo' Pins, Mo' better. Can't loose it in the dark

26.10.2023

A**R

Works perfectly

Perfect Leonardo clone

15.02.2023

R**N

AAA +++++ Thanks

16.01.2023

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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4 days ago

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197 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 month ago

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Manufacturer	KEYESTUDIO
Language	English
Item model number	KE-0011
Product Dimensions	6.85 x 5.3 x 0.42 cm; 58.97 g
ASIN	B0786LJQ8K

KEYESTUDIO Leonardo R3

Details

Details

Description

Specifications

Reviews

Common Questions