User Manual

7.7, Set up the key
Fixed 16 bytes and 16 decimal numbers (16 characters) with the encryption key to
resolve the data correctly.Query is not supported.
Serial
port
Format
Note
Send
AT+DATAKEY=Qqert,91234567890
Support for numbers, English, and
English characters. Default：All 0
Return
AT+DATAKEY=OK
Correct return
AT+DATAKEY=ERR
Wrong return
Send
AT+DATAKEY=?
Inquiry
Return
AT+DATAKEY=ERR
7.8, Save the parameters set above
Note: Perform this command to save the previously set AT instruction parameters.
Serial
port
Format
Note
Send
AT+SAVE
Save the above set AT instruction parameters
Return
AT+SAVE=OK
7.9, clear the above set parameters- -the restart takes effect
Note: restore default except the above setting AT instruction parameters.
Serial
port
Format
Note
Send
AT+RESTORE
Clear the above set AT instruction parameters
to restore the default values
Return
AT+RESTORE=OK
7.10, Exit the AT instruction mode
Note: This step indicates that the setting is complete and the module receives the
instruction into transmission mode.The setting was not complete midway, and the
previous setting was also successful.
Serial
port
Format
Note
Send
AT+EXAT
Exit the at instruction mode
Return
AT+EXAT=OK
Note: The parameters configured through the AT instruction will not be
automatically saved, the configured parameters after power again will restore
the default, need to be saved through AT + SAVE.