Operation Guide

X-C13SG_REV1.6_Operation Guide

X-C13SG

Shanghai RaymonIoT Technology Co., Ltd.

l Command Message

AT+<CMD>[op][para-1,para-2,para-3,para-4…]<CR>

n AT+: Prefix of command message;

n CMD: Command string;

n [op]: Symbol of command operator,

u “=”: The command requires parameters input;

u “NULL”: Query the current command parameters setting;

n [para-n]: Parameters input for setting if required;

n <CR>:”Enter” Key, it’s 0x0a or 0x0d in Hex;

l Notes:

<CR>, <LF> and <CRLF> are three different command ends. The HEX value of each is:

<CR>=0x0d, <LF>=0x0a, <CRLF>=0x0d 0x0a. Please pay attention to their differnces especially when

using different UART tools. Some tools will only send <CR>, some will send <CRLF> when input

“Enter” key, so we suggest that:

1，All command use HEX format;

2，Choose a right UART tools, can control these end characters.

n Response Message +<RSP>[op] [para-1,para-2,para-3,para-4…]<CR><LF><CR><LF>

n +: Prefix of response message;

n RSP: Response string;

u “ok”: Success

u “ERR”: Failure

n [op]: =

n [para-n]: Parameters if query command or Error code when error happened;

n <CR>: HEX 0x0d;

n <LF>: HEX 0x0a;

l Error Code

Error Code

Description

-1

Invalid Command Format

-2

Invalid Command

-3

Invalid Operation Symbol