DFRobot Beetle BLE - The Smallest Board Based on Arduino Uno with Bluetooth 4.0

SKU:DFR0339 Brand:DFRobot Reward Points: 149
In Stock
Topic: Arduino
Quantity Based Price
  • 2-4$14.50
  • 5-9$14.00
  • 10+$13.00
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Beetle BLE (formerly known as Bluno Beetle) is a miniature development board based on the Arduino Uno prototype. Equipped with Bluetooth 4.0 (BLE), it boasts a compact design and can be programmed and code uploaded through micro USB using the Arduino IDE. Additionally, it supports Bluetooth remote programming updates, eliminating the need for complex development environments and driver installations, simplifying the development process. It is fully compatible with Bluno's commands and procedures. The board also supports Bluetooth HID and iBeacon modes. For more detailed information, you can refer to the selection guide.

Beetle BLE, as an ultra-compact development board compatible with Arduino Uno, is particularly well-suited for makers, students, and other enthusiasts. It is ideal for DIY projects, creative development in gift projects, and other designs. Due to its tiny size and sewable features, along with V-shaped gold-plated I/O interfaces for easy screw-type wire connections, it is suitable for creating wearable devices such as smart bracelets and smart clothing. Additionally, it can be utilized through Bluetooth 4.0, paired with the Play Bluno application on iOS or Android, enabling remote control of devices and Arduino program updates.

Just like a native Arduino board, but with Bluetooth 4.0. An APP called Play Bluno is available on IOS and Android which gives quick access to this little tiny board.

It not only supports USB programming but also wireless uploading method. With the V-shaped gilded I/O interface, it is convenient to screw conductor wire on it, which could be a good choice in the wearable market.

Beetle BLE can be optionally paired with the Beetle BLE Expansion Board, providing users with convenient access to Beetle BLE port resources. This allows for the direct connection of DFRobot 3-pin sensors and other expansion devices. By combining the expansion board with sensors and following the basic Arduino usage tutorials for the respective sensors, users can easily fulfill various requirements and achieve a wide range of applications.

Bluno Series

Introduction to Bluno Series


  • ATmega328@16MHz
  • Bluetooth Low Energy (BT 4.0)
  • Micro USB port
  • Super Compact Size
  • Support Bluetooth HID and ibeacon
  • Compatible with all DFRobot Bluno Series
  • Support Wireless Programming
  • Specification

  • Bluetooth Chip: CC2540
  • Sensitivity: -93dBm
  • Working Temperature: -10 ℃ ~ +85 ℃
  • Maximun Distance: 50m(1968.50")(Open field)
  • Microcontroller: ATmega328
  • Clock frequency: 16 MHz
  • Operating voltage: 5V DC
  • Input voltage: <8V (Vin < 8V)
  • Digital Pin x4
  • Analog Pin x4
  • PWM Output x2
  • UART interface x1
  • I2C interface x1
  • Micro USB interface x1
  • Power port x2
  • Size: 28.8mm X 33.1mm(1.13" x 1.30")
  • Weight: 10g
  • Projects

    Project 1: How to Make a Jumping Paper Frog

    Introduction: Back in the 80’s and 90’s kids made their own toys like paper planes and spinning tops. These toys accompanied them throughout their childhood. Now let's make a frog.

    Project 2: How To Make a Color Light based on Bluno Beetle

    Introduction: This test will design a toy Iron Man Power Supply which can be worn on the chest as accessory or on the hand, to simulate the flickering of launching weapon by use of 6-axis sensor.

    Project 3: DIY Deer Clock

    Introduction: We are going to make a table clock showing time in a lovely way. This product has quite a cute look and the LED screen makes it cool.

    Project 4. Application Tutorials of FireBeetle Board - ESP32 BLE: Smarten a Plugboard

    Introduction: What you have seen is a smart plugboard that converted by the ESP32 master board and controlled by the BLE of ESP32.

    Project 5. How To Make A Smart Clock with ESP32?

    Introduction: I’ve always been dreaming of making a desktop clock without complex functions, just smaller and can display time.


    Shipping List

  • Beetle BLE x1




    DFRobot Beetle BLE - The Smallest Board Based on Arduino Uno with Bluetooth 4.0

    In Stock
    • 2-4$14.50
    • 5-9$14.00
    • 10+$13.00