Arduino Bluetooth Module

Specifications:

Bluetooth chip: CSR BC04 Chipset
Bluetooth protocol: Bluetooth Specification v2.0 + EDR
Operating frequency: 2.4 ~ 2.48GHz unlicensed ISM band
Modulation: GFSK (Gaussian Frequency Shift Keying)
Transmit Power: ≤ 4dBm, Class 2
Transmission distance: 20 ~ 30m in free space
Sensitivity: ≤-84dBm at 0.1% BER
Transfer rate: Asynchronous: 2.1Mbps (Max) / 160 kbps; Synchronous: 1Mbps/1Mbps
Safety features: Authentication and encryption
Can be configured as master or slave node. Default is slave mode.
Support profiles: Bluetooth serial port
Serial port settings: 1200 ~ 1382400 / N / 8 / 1
Baud rate default: 9600 bps(Serial Port Profile, transparent mode)
Baud rate default: 38400 bps in AT mode.
Pair Number/ID: 1234
Input Voltage: +3.3 DC/50mA
Operating temperature: -20 ? ~ +55 ?
Module Size: 32 × 24 × 9mm
AT Command The current version of the module only supports AT commands used to test the baud rate. The default baud rate for testing the module in AT command is 38400bps.
Command:
Transmit: AT
Return: OK

Default:
Slave, 9600 baud rate, N, 8, 1. Pincode: 1234
Document:
User Manual
Fritzing file
Tutorials:
Getting Started With BlueBee
Interfacing BBFuino with BlueBee
Using BlueBee in Master mode
Connect Android Bluetooth to BlueBee
Arduino Wireless Programming with BlueBee
Uploading Arduino Sketch to BBFuino via BlueBee (Wireless)
Controlling Mobile Robot via Android Bluetooth