《お取り寄せ商品》Beetle - The Smallest Arduino




Beetle is a extremely the smallest Arduino leonardo board. It derives its core notion from minimalism without compromising functionality.

It comes with Atmel AtMega32u4 (datasheet) @16MHz clock time and has expanded amounts of interfaces: 10 digital pins, 5 analog pins and 4 pwn pins. To further make it user-friendly, it is compatible with Micro USB so that direct programming and testing is no longer a headache. Select "Arduino Leonardo (tools >board > Arduino Leonardo in Arduino IDE), the ATmega32U4 comes preburned with a bootloader that allows you to upload any new code that is applicable to Arduino Leonardo.

As the smallest Arduino Leonardo, it enjoys similar powerful functionalities. Beetle aims to solve problems of low-cost controller, ease-of-using properly, and to provide a low cost solution for disposable projects, such as DIY projects, workshops, gift projects, E-Textiles and educational. For students and makers who can not afford too much on hardware purchasing, Beetle can be a great solution for them.

DFRduino Leonardo, Nano, Nova and Beetle
left to right: DFRduino Leonardo, Nano, Nova and Beetle
DFRobot released it's a new product called Beetle BLE - The smallest Arduino bluetooth 4.0, which is an Arduino Uno based board with bluetooth 4.0 (BLE). It is probably the smallest Arduino BLE board in the market.


  • 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



  • Beetle x1


Beetle - The Smallest Arduino Related Projects:
Project 1: How to Make Music IQ Led Lights with arduino board?
Project introduction: This Music IQ Led Lights with arduino board is an application based on an individually addressable LED strip.
The things you need to do this project:
Audio Analyzer1
Analog sound sensor
RGB individually addressable LED strip 1
Beetle - The Smallest Arduino Microcontroller

Project 2: How to make a Programmable Fiber Optic Fairy Wings?
Project introduction: Technology and a few button clicks on the internet gives you the tools to create your own glowing fairy wings, lean how to make it.
The hardwares you need to do this project:
Digital RGB LED Weatherproof Strip 60 LED
Beetle - The Smallest Arduino

Project 3: DIY Deer Clock
Project introduction: We are going to make a table clock showing time in a lovely way. This product has quite cute look and the LED screen make it cool.

The hardwares you need to do this project:

Gravity: I2C SD2405 RTC Module
Beetle - The Smallest Arduino
FireBeetle Covers-24×8 LED Matrix (White)
Micro USB cable

Project 4: How to Make a Running Heart Alarm T-shirt
A DIY heart-rate wereable in a running t-shirt that vibrates when your heart-rate is high, using DFROBOT components.

The hardwares you need to do this project:
Arduino Nano
Beetle - The Smallest Arduino
vibration motor module for arduino
heart rate monitor sensor arduino

Project 5: Make a shiny dice for monitoring battery capacity
The materials you may need:
Gravity: I2C 3.7V Li Battery Fuel Gauge
Beetle - The Smallest Arduino
Single Sided ProtoBoard ( flexible PCB )
LED Lamp Beads ×21Crystal Epoxy Resin and metal complex dyes.

6Project 6: A Wristband Pedometer Based on BMI160 Motion Sensor
Recently I bought a 6-Axis Inertial Motion Sensor from DFRobot. So it occurs to me that why not make a wristband pedometer to calculate my physical strength.

The material you may need:


Name 《お取り寄せ商品》Beetle - The Smallest Arduino
SKU# 4284
Shipping 650
税込単価 1,102 JPY
在庫 0
公開日 2018年11月22日
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