USR-G786-G User Manual
Technical Support:
Jinan USR IOT Technology Limited
www.pusr.com
43
7.1.3.SMS AT Command
SMS AT command means that we can use SMS to query and configure the parameters of G786-G.
SMS AT command is generally used when customers need to query or modify parameters temporarily. We can
query and modify parameters as long as know the phone number of the device, which is very convenient for
equipment management in remote areas.
Take the query of firmware version as an example, send AT command. Send "
www.usr.cn#AT+VER
" (Note: there
is an Carriage Return at the end of the string) from the mobile phone to the module. After receiving it, the
module will return the response information as shown in the figure below
：
7.1.4.Command Format
AT command is "query and reply" command, divided into "query" and "reply" two parts."Query" means that the
device sends an AT command to G786-G, and "reply" means that G786-G sends a reply to the device.
Note: characters in instructions are case-insensitive.
7.1.4.1 Symbol Introduction
Figure 9 Symbol introduction
Symbol
Implication
<>
The content is essential items
[]
The content is non-essential items
{}
The content is a string with special meaning
~
Parameter range
，
e.g. A~B. Parameter ’s range is from A to B
CMD
Command code
OP
The operator
PARA
Parameters
CR
Carriage Return in ASCII, 0X0D in hex