AT Command Sets

1. Test communications
Send:AT(Back: OK,1sec/time)
Back:OK

2. Change the communications baud rate of Bluetooth serial port
Send:AT+BAUD1
Back:OK1200
Send:AT+BAUD2
Back:OK2400

1---------1200
2---------2400
3---------4800
4---------9600
5---------19200
6---------38400
7---------57600
8---------115200
9---------230400
A---------460800
B---------921600
C---------1382400

We do not suggest a 115200+ baud rate, because signal interference will cause the system unstable.
If the baud rate is more than 115200, it cannot be applied by PC, then you have to program the baud rate as excess 115200 by SCM to make the baud rate available,
or give the AT command to set lower baud rate Baud rate can be saved without power, do not need to set again when use it.

3. Change Bluetooth’s name
Send:AT+NAMEname
Back:OKsetname
Parameter name:Enter less than 20 characters when setting the bluetooth’s name, this name will be researched by Bluetooth.
Example:Send AT+NAMEbill_gates
Back: OKsetname
Then Bluetooth’s name will be bill_gates.
Change the name only one time and it can be saved without power. PDA terminal will recognize the new name.

4. Change Bluetooth’s pairing code
Send:AT+PINxxxx
Back:OKsetpin
Parameter xxxx: Pairing code will be 4 bytes, can be used to both master and slave. when the adapter or cell phone bring out a box to ask for pairing code, then enter this parameter to link the slave. The master module will search and automatic paired with this slave when the code is right. Except for slave module, master module also can be paired with other products such as Bluetooth DC, Bluetooth GPS, Bluetooth printer and so on. Below is the example of Bluetooth GPS:
Example:send AT+PIN8888
Back: OKsetpin
Then the pairing code will be 8888 while the factory code is 1234.
Parameter can be saved without power, need change only one time.

5. Acquire version command:AT+VERSION
   Show “Linvor” when turn back, then it’s certified version.