Low power WIFI module user manual http://en.usr.cnJinan USR IOT Technology Limited tec@usr.cnPage 36/724.2. AT+ Instruction Set OverviewUser can input AT+ Instruction through hyper terminal or other serial debugterminal, also can program the AT+ Instruction to script. User can alsoinput “AT+H” to list all AT+ Instruction and description to start.Figure 32. ”AT+H” Instruction for Help4.2.1. Instruction Syntax FormatAT+Instruction protocol is based on the instruction of ASCII command style,the description of syntax format as follow. Format Description < >: Means the parts must be included [ ]: Means the optional part Command MessageAT+[op][para-1,para-2,para-3,para-4…] AT+: Prefix of command message; CMD: Command string; [op]: Symbol of command operator, “=” : The command requires parameters input; “NULL”: Query the current command parameters setting; [para-n]: Parameters input for setting if required; :”Enter” Key, it’s 0x0a or 0x0d in ASCII;
