The Beetle Ble (Former name as Bluno Beetle)  is a board based on Arduino Uno with Bluetooth 4.0 (BLE).  It is probably the smallest BLE board in the market.  It uses standard Arduino IDE to upload codes via without any extra library and drivers.  This Beetle BLE is another milestone in the Beetle line, which makes DIY users have more options in the project design. It is fully compatible with Bluno in instructions and procedures. Support Bluetooth HID and ibeacon modes. You may also check the Bluetooth microcontroller selection guide to get more information.

The Beetle BLE is a super tiny and low-cost Arduino-compatible board with Bluetooth 4.0. The Beetle BLE can be used for disposable projects, such as DIY projects, workshops, gift projects, E-Textiles wearable, and educational. For students and makers who can not afford too much on hardware purchasing, Beetle can be a great solution for them. 

• 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

• 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

Materials

1. Bluno Beetle controller
2. 3.7V Battery
3. Analog Sound Sensor ( compatible with Arduino)
4. Player module

Materials

- Bluno Beetle

- Wireless charging battery

- LSM303 Breakout Board - Tilt Compensated Compass

- Digital RGB LED Strip 60 LED - (3m)(weatherproof)

- Light Disc with 7 SMD RGB LED

Bluno Beetle Project 3：let’s make an AR Pikachu with Bluno Beetle

Materials

- Bluno Beetle

- 1.75mm PLA (1kg) - Gold

- OverLord 3D Printer - Classic Blue (EU)

Bluno Beetle Project 4：How to Make A Pet Wearable with Bluno Beetle

Components

- Beetle BLE

- Digital RGB LED Strip 60 LED - (3m)(weatherproof)

- LilyPad LED Micro - White (5pcs)

- DFPlayer - A Mini MP3 Player For Arduino

- 3.7V Polymer Lithium-Ion Battery - 1000mAh

- Speaker

Beetle Project 5: DIY Deer Clock

Project 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.

The hardware you need to do this project:

- Gravity: I2C SD2405 RTC Module

- Beetle

- FireBeetle Covers-24×8 LED Matrix (White)

- Micro USB cable

Project 6. Application Tutorials of FireBeetle Board - ESP32 BLE: Smarten a Plugboard

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

Hardware in need:

• USB Power Supply Wall Adapter 5V@2.5A (EU Standard)
• FireBeetle ESP32 IOT Microcontroller (Supports Wi-Fi & Bluetooth)
• FireBeetle Covers-Gravity I/O Expansion Shield
• FireBeetle Covers-Proto Board
• Gravity: Digital 5A Relay Module
• Beetle BLE
• Button
• 8Crust printed by 3D printer

Project 7. How To Make A Smart Clock with ESP32?

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

Hardware:

• Gravity I2C OLED-2864 Display
• Gravity: I2C Triple Axis Accelerometer
• Beetle BLE
• Lithium Battery Charger
• 3.7V Polymer Lithium Ion Battery - 1000mA
• Shell (3D printing)
• Black Acrylic Transparent Board

• Wiki
• Schematic
• Layout_Top
• Layout_Ground

• Beetle BLE x1