DFRobot Beetle BLE Smallest Board on Arduino Uno with Bluetooth 4.0
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DFRobot Beetle BLE Smallest Board on Arduino Uno with Bluetooth 4.0
Beetle BLE (formerly known as Bluno Beetle) is a super-compact development board based on the Arduino Uno prototype, enhanced with Bluetooth 4.0 (BLE). It supports both USB and wireless programming, and is perfect for wearables, DIY gifts, IoT projects, and Bluetooth-controlled applications.
Fully compatible with Arduino IDE and DFRobot Bluno series, it eliminates the need for complex setups. Plus, it supports Bluetooth HID and iBeacon, making it ideal for smart devices and interactive applications.
Why Choose Beetle BLE?
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Tiny form factor, powerful performance
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Bluetooth Low Energy (BLE 4.0) onboard
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No driver required for basic use
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Supports Play Bluno app (iOS/Android) for remote interaction
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Perfect for sewable electronics thanks to V-shaped gold-plated I/O pads
Features
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ATmega328 @16MHz
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Bluetooth 4.0 (BLE) via CC2540 chip
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HID & iBeacon support
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Micro USB for direct upload
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Wireless Arduino programming
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Compatible with Beetle BLE Expansion Board for sensor integration
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28.8mm x 33.1mm footprint – ultra compact
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Weight: 10g
Technical Specification
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Bluetooth Chip: CC2540
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Sensitivity: -93 dBm
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Max Range: 50m (open field)
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Working Temp: -10°C to +85°C
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Operating Voltage: 5V
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Digital I/O: 4
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Analog Input: 4
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PWM Output: 2
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Interfaces: UART x1, I2C x1, Micro USB x1
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Power Port: x2
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Dimensions: 28.8mm × 33.1mm (1.13” x 1.30”)
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Weight: 10g
Use Case Scenarios & Projects
Project 1: How to Make a Jumping Paper Frog
Project 2: How to Make a Color Light based on Bluno Beetle
Project 3: DIY Deer Clock
Project 4: BLE Plugboard with ESP32 Smart Control
Project 5: How to Make a Smart Clock with ESP32
Ideal For
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Wearable tech
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BLE-based remote control
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Arduino beginners & educators
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Low-power & portable IoT applications
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Compact interactive art & toys
Includes
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Beetle BLE Board ×1
Reference
Effective Date: March 27, 2025
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