Espressif Systems ESP8266EX - 4 At Instruction Set; Overview; Basic at Instructions

CONFIDENTIAL
Espressif
Systems
ESP8266EX Beginner’s Guide
4. AT Instruction Set
4.1. Overview
Each instruction set contains four types of AT commands.
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Note:
1. Not all AT instruction has four commands.
2. [] = default value, not required or may not appear
3. String values require double quotation marks, example AT
+CWSAP=“ESP756190”,”21030826”,1,4
4. Baud rate = 115200
4.2. Basic AT Instructions
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Test
A T+<x>=?
Query the Set command or internal parameters and
its range values.
Query
A T+<x>?
Returns the current value of the parameter.
Set
A T+<x>=<...>
Set the value of user-defined parameters in
commands and run.
Execute
A T+<x>
Runs commands with no user-defined parameters.
Command
Description
Response
Reference
AT
Test AT startup
OK
AT+RST
Restart module
OK
AT+GMR
View version info
<number>
OK
<number> = 8-digit
version no.
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