User's Manual

5 AT command

Note: Before sending operation instructions, first ensure that the module is in wake-up mode, otherwise it will not

be able to receive configuration instructions.

5.1 Command description

All AT commands do not need to add carriage return (\r), line feed (\n)

All AT commands are not case sensitive

The return result of AT command ends with \r\n (except for returning HEX)

Command error response format +ERR=[NUM]. (NUM is ACSII)

5.2 Error code

NUM

Description

Error reason

Solution

Command not exist

AT command string contains error

Check AT specified data string

Parameter length error

1、 AT command length sum

error；

2、Data length is beyond the correct range

Check parameter

Invalid parameter

1、Parameter exceed value range

Check the parameter value

according to the command

5.3 Status printing

Status

Printing info.

Connect successfully

slave

\r\nSTA:connect,1,<MAC\r\n

master

\r\nSTA:connect,1,<MAC\r\n

Disconnect

slave

\r\nSTA:disconnect\r\n

master

\r\nSTA:disconnect,1\r\n

System wake up

\r\nSTA:wakeup\r\n

Sleep mode

\r\nSTA:sleep\r\n

5.4 Command sets

5.4.1 AT test command

Command

Response