1, using mainstream CSR Bluetooth chip, Bluetooth V2.0 protocol standards.

2, the module supply voltage: 3.3V ~ 3.6V.

3, the default parameters: 9600 baud, pairing code 1234, the mode of the slave.

4, the core module size size: 27mm x 13 mm x 2mm.

5, the working current: pairing: 30 ~ 40mA paired with not communicating: 2 ~ 8Ma communication: 8mA no sleep.

6, the communication distance: open conditions 10M, 8M normal use of the environment around.

7 for GPS navigation systems, utility meter reading systems, industrial control systems mining site, can be used with Bluetooth laptop, computer and Bluetooth adapters, PDA and other devices seamlessly.

一., the factory default parameters:

从机，波特率：9600，N，8，1。配对密码：1234；如要需要主机模式，请下单时注明。

From the machine, the baud rate: 9600, N, 8, 1. Pairing password: 1234; such as the need to place an order when the host mode, please specify.

二、AT命令集如下：

二, the AT command set:

1、测试通讯

1, the communication test

发送：AT（返回OK，一秒左右发一次）

Transmission: AT (or OK, a second or so made a)

返回：OK

Returns: OK

2、改蓝牙串口通讯波特率

2, change the Bluetooth serial communication baud rate

发送：AT+BAUD1

Transmission: AT+BAUD1

返回：OK1200

Returns: OK1200

发送：AT+BAUD2

Transmission: AT+BAUD2

返回：OK2400

Returns: OK2400

……

......

1---------1200

1---------1200

2---------2400

2---------2400

3---------4800

3---------4800

4---------9600

4---------9600

5---------19200

5---------19200

6---------38400

6---------38400

7---------57600

7---------57600

8---------115200

8---------115200

9---------230400

9---------230400

A---------460800

A---------460800

B---------921600

B---------921600

C---------1382400

C---------1382400

不建议用在超过115200的波特率，信号的干扰会使系统不稳定。

Not recommended for use on more than 115200 baud rate, signal interference will make the system unstable

3, change the Bluetooth name

发送：AT+NAMEname

Transmission: AT+NAMEname

返回：OKname

Returns: OKname

4、改蓝牙配对密码

4, change the Bluetooth pairing password

发送：AT+PINxxxx

Transmission: AT+PINxxxx

返回：OKsetpin

Returns: OKsetpin