Leonardo R3 Microcontroller Atmega32u4 Development Board With USB Cable Compatible For Arduinos DIY Starter Kit

  • 10 – 49 Pieces
    US $5.03
  • 50 – 499 Pieces
    US $4.83
  • 500 – 999 Pieces
    US $4.73
  • >=1000 Pieces
    US $4.53
Model Number:
Leonardo R3
Brand Name:
Place of Origin:
Guangdong, China (Mainland)
Operating frequency:
Working voltage:
Input voltage:
Digital IO port:
PWM channel:
Analog input:
Net tweight:
18 g
2.5 KB (ATmega32u4)
Original 100%
Supply Ability:
10000 Piece/Pieces per Day
Packaging Details
Individual Static Bag + Standard safe exporting packing
Lead Time:
within 3 -5days after payment received


The Leonardo Board is a microcontroller board based on the ATmega32u4 for Arduin0. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.
The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.


Chip: ATmega32u4
Board Mode: LEDNARDO R3
Operating frequency: 16MHz
Working voltage: 5V
Input voltage: 7-12V
Digital IO port: 20
PWM channel: 7
Analog input: 12
Maximum current of 5V digital/analog port: 40mA
Maximum current of 3.3 V digital/analog port: 50 mA
Flash Memory:32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM: 2.5 KB (ATmega32u4)
EEPROM: 1 KB (ATmega32u4)
Net tweight:18 g
Package weight:28 g
Color:As shown in the pictures

Package Content:
1 Ardu Module
1 USB Cable





1,How about the quality of your product? 

Before shipping out, all goods have been double verified by KOZHIYOU quality inspection center ,Our test engineer will check for quality, including check the basic function of the hardware and software, the appearance, the packing, the necessary accessories and power adapter plug standard.  Less than 1% repairing rate within one year.    


2, What is the delivery time?
Normally, 1-5 workdays after payment; 
Special requirement orders, delivery time is negotiable.
Rich stock can satisfy urgent requirement.And support small orders.  

3,What are the warranty and after-sale of the product?  

 If the products can’t work after receiving it,we will replace your new product immediately and  make the judgement for the issue.
If the products don’t meet my demand after I received it,you can return back to us, we will refund your full payment.  
1-2 years warranty according to different products 
1-3 months to replace new items for free.     

4,Can you OEM|ODM? 

 Of course, we can. KOZHIYOU have professional R & D Center,we can develop and manufacture according to customer’s requirements. 

We can make your package please Such as printing your logo.  

5,Are you a manufacturer?  
Yes, we manufacture different controller board, Exponsion Shiled Board, sensor Module for Arduino, 3Dprinter Controller Board,Raspberry Pi,Banana pi.
Our factory and office are in Shenzhen, welcome you to visit at any time!   




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