Specifications

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5.Serial At Command Description
The module will automatically identify and distinguish serial port data. Packets with
"AT+" at the beginning will be defaulted to AT commands and parsed, and the
processing result will be returned. Therefore, data in transparent transmission mode
cannot start with "AT+" characters; non-AT commands The data will be forwarded by
the module to the connected Bluetooth terminal
5.1 TEST COMMAN
Command format: AT+TEST\r\n
Return value: OK\r\n
Content: Send AT test command, and return OK to indicate successful AT
command test
5.2 Software version query command
Command format: AT+VERSION?\r\n
Return value: x.x.x\r\n
Contents: Returns the current software version number of the module
5.3 MAC address operation command
Enturn value: xx:xx:xx:xx:xx:xx\r\n
Content: Return the module's current MAC address
5.4 Serial baud rate operation command
Command format: AT+BAUD=115200\r\n
Return value: OK\r\n