The DFRobot Beetle BLE, previously named the Bluno Beetle, is the smallest Arduino Bluetooth 4.0 (BLE) from their range. It offers similar functionality to that of an Arduino Leonardo, all from a board just 20mm wide.

What interfaces does the Beetle BLE have?
The Beetle BLE has a microUSB port for easy connectivity for programming and testing. Italso has 10 x digital pins, 5 x analogue pins and 4 x PWM pins. There are v-shaped, gold-plated I/O ports which you can twist wires onto.

What is a Beetle?
The Beetles are a range of modules from DFRobot which offer a minimalistic board with lots of functionality. They are the most compact boards within the DFRobot range and are perfect for integrating into your smaller designs.

What is it designed for?
The Beetle BLE is a low-cost, compact board designed for disposable projects. This includes:
DIY projects
Gifts
E-textiles
Workshops
Education

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

Bluno family with Bluetooth(BLE)