Data Sheet

Air602_AT Instruction User Manual
2 AT Command Protocol
2.1 Syntax Description
This module uses the AT+ command protocol as the user control protocol. The AT+ instruction protocol uses a set of
command line format instruction sets based on ascii. The syntax format and processing flow are described below.
2.2.1 Syntax format
• Format Description
Luat 10 /73 page
• Command Message
AT+<CMD>[op][para1],[para2],[para3],[para4]…<CR> AT+
： Command message prefix
CMD：Command String
[op]： Instruction operator, when the command needs to take a parameter, you can specify the operation
type of the parameter, including：
=， Parameter/Return value preamble
=!， In the setting parameter class command, it means that the modification is synchronized to flash,
and the restart does not disappear. ；If there is no ! Before = , it means that it is only saved in
memory, and the parameters disappear after restarting.
=?，In the Set Parameter Class command, query the current settings.
<CR>：Carriage Return，ascii character 0x0d
• Response message
+<RSP>[op][para1],[para2],[para3],[para4]…<CR><LF><CR><LF>
+： Response message prefix
RSP： Response string
OK Success
ERR Failure
<>： Indicates the part that must be included
[ ] ： Indicates the optional part