DFRobot Beetle Arduino Microcontroller - ATmega32U4

DFRobot Beetle Microcontroller Board

DFRobot Beetle is one of the smallest Arduino compatible board in available. 

It is an Arduino compatible microcontroller that is embedded with the ATmega32U4 chip. 

The DFRobot Beetle is fully compatible with the Arduino Leonardo board. It derives its core notion from minimalism without compromising functionality.

Key Features

  • 20mm X 22mm compact size
  • Direct downloading and testing via Micro USB
  • V-shaped large-size gold-plated IO ports make it convenient for the user to twist wires upon, and can also be directly sewn on clothes with conductive thread.
  • Two honeycomb shape gold-plated power interface
  • Magic light blue soft BLINK indicator


  • Microcontroller: ATmega32u4
  • Clock Speed: 16 MHz
  • Operating Voltage: 5V DC
  • Digital I/O Pins: 10 
  • PWM Channels: 4 
  • Analog Input Channels: 5 
  • UART: 1 
  • I2C: 1 
  • Micro USB: 1 
  • Power Ports: 2 
  • Flash Memory:  32 KB of which 4KB used by bootloader
  • SRAM:  2.5 KB
  • EEPROM:  1 KB
  • Size: 20mm*22mm*3.8mm

Typical Application

Star Wars Blaster Scope

Wearable devices

Rapid prototyping (directly attached to the expanded PCB as a minimal system)

Perfect for all the projects that need a mini Arduino

DFRobot Wiki Pages

How to program the DFRobot Beetle using Arduino IDE.

Click on Tools and Select Arduino Leonardo.

Then once connected select the correct Port.

Package Includes:

1 x DFRobot Beetle - Arduino Microcontroller

Please Note: DIY electronics are meant for those with basic electrical knowledge and soldering skills. DIY electronics do not include lead wires, instructions or warranties.

Before placing your ordering, please make sure you are fully aware of the shipping policy outlined here: Shipping Policy

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  • Brand: DFRobot
  • Product Code:GE00131
  • Availability:20

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