AT Command Syntax
Table 2: AT Command Syntax
Multiple commands can be placed on a single line using a semi-colon (“;”) between commands. Only the
first command should have AT prefix. Commands can be in upper or lower case.
When entering AT commands spaces are ignored except in the following cases:
⚫ Within quoted strings, where they are preserved;
⚫ Within an unquoted string or numeric parameter;
⚫ Within an IP address;
⚫ Within the AT command name up to and including a ‘=’, ‘?’ or ‘=?’.
They can be used to make the input more human-readable. On input, at least a carriage return is required.
A newline character is ignored so it is permissible to use carriage return/line feed pairs on the input.
Test Command AT+=? Check possible sub-parameter values
Read Command AT+? Check current sub-parameter values
Write Command AT+=p1[,p2[,p3[.....]]] Write command
Execution Command AT+
1