User's Manual

USR-G786-G User Manual Technical Support: h.usriot.com
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CR
Carriage Return in ASCII, 0X0D in hex
LF
Line Feed in ASCII, 0X0A in hex
7.1.4.2 Query format in command
Command string：<AT+>[CMD][OP][PARA]<CR>
Figure 10 symbol description
Command code
Implication
Necessary or not
AT+
AT command header
YES
CMD
Command name
NO
OP
Operator, such as =,?
YES
PARA
Executed Parameter
NO
CR
Carriage Return, command
terminator
YES
Command type description
Figure 11 Command string format description
Type
String format
Description
0
<AT+><CMD>?<CR>
Query current parameters
1
<AT+><CMD><CR>
Execute the action of this command or query
current parameters
2
<AT+><CMD>=<PARA><CR>
Set this command’s parameter
7.1.4.3 Reply format in command
Note: the response information of the command can be divided into two types: echo and no echo. Echo
means to return the input content when the command is input, and then make a response to the command.
No echo means no input is returned and only the command is responded to. In the following instructions, no
echo mode is used as an example.。
Command String：[CR][LF][+CMD][OP][PARA][CR][LF]<CR><LF>[OK]<CR><LF>
Figure 11 Symbol descriptions
Command
Implication
Necessary or not
CR
Carriage Return
No
LF
Line Feed
No
+CMD
Response header
No
OP
Operator , e.g: “:”
No
PARA
Returned parameter
No
CR
Carriage Return
No
LF
Line Feed
No
CR
Carriage Return
Yes
LF
Line Feed
Yes