Instructions

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Espressif Systems
ESP8266
AT Instruction Set
2.
Command Description
Each Command set contains four types of AT commands.!
Notes: !
1." Not all AT commands support all the above mentioned four variations.!
2." [] = default value, not required or may not appear !
3." String values require double quotation marks, for example: !
" AT+CWSAP="ESP756290", "21030826", 1, 4!
4." Default Baudrate = 115200!
5. AT commands have to be capitalized, and must terminate with "/r/n". Terminal programs must
be set up accordingly (refer to screenshot below).
!
Type
Command Format
DescrIPtion
Test
AT+<x>=?
Query the Set command or internal parameters and its
range values.
Query
AT+<x>?
Returns the current value of the parameter.
Set
AT+<x>=<…>
Set the value of user-defined parameters in commands and
run.
Execute
AT+<x>
Runs commands with no user-defined parameters.
Espressif Systems  / Friday, July 15, 201610 73