Elecrow
Bluetooth Bee
The Elecrow Bluetooth Bee is a Bluetooth V2.0+EDR serial module in an XBee-compatible form factor. It provides transparent wireless serial communication at u...
The Elecrow Bluetooth Bee is a Bluetooth V2.0+EDR serial module in an XBee-compatible form factor. It provides transparent wireless serial communication at up to 2.4 GHz, making it easy to add Bluetooth connectivity to any project with an XBee socket — no additional wiring required.
Based on the CSR BC417143 chip, the module supports SPP (Serial Port Profile) and can be configured as Master, Slave, or Loopback. It auto-connects to the last paired device on power-up and supports baud rates from 1200 to 1,382,400 bps with CTS/RTS flow control.
Key Features
- XBee Form Factor – Drop-in compatible with standard XBee sockets
- Bluetooth V2.0+EDR – Up to 3 Mbps modulation with adaptive frequency hopping
- Transparent Serial Bridge – Wireless serial connection with SPP protocol
- Configurable Modes – Master, Slave, or Loopback operation
- Auto-Reconnect – Automatically connects to last paired device on power-up
- 20–30 m Range – Class 2 transmission in open space
Specifications
- Bluetooth Chip – CSR BC417143
- Bluetooth Version – V2.0+EDR
- Frequency – 2.4–2.48 GHz ISM band
- Modulation – GFSK
- Transmit Power – ≤4 dBm (Class 2)
- Range – 20–30 m (free space)
- Sensitivity – ≤−84 dBm at 0.1% BER
- Async Transfer Rate – 2.1 Mbps max / 160 kbps
- Sync Transfer Rate – 1 Mbps / 1 Mbps
- Serial Settings – 1200–1,382,400 baud, 8N1 default at 38,400
- Flow Control – CTS/RTS
- Default PIN – 0000
- Input Voltage – 3.3 V DC / 50 mA
- Operating Temperature – −20 to +55 °C
- Profile – SPP (Bluetooth Serial Port)
Ideal For
- Adding Bluetooth serial to XBee-socket projects
- Wireless Arduino serial communication
- Remote sensor data logging
- Wireless device configuration and debugging
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- baud
- Baud is the signalling rate of a serial connection, often used as the speed setting for UART communication. Matching the baud rate matters because both connected devices must use the same setting for readable data.
- CTS
- CTS stands for Clear To Send, a serial flow-control signal that tells the other device it may transmit. It matters for reliable high-speed serial communication where buffers could otherwise overflow.
- RTS
- RTS stands for Request To Send, a serial flow-control signal used to manage when a device is ready to receive data. It matters when moving fast serial streams because flow control can help prevent lost data.
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Related Tutorials
Free guides on learn.littlebird.com.au
