Aug 12, 2014 - Each instruction set contains four types of AT commands. Type. Instruction Format. Description. Test. AT+=? Query the Set command or ...
Table of Contents Version Info .................................................................................................................... 2 Table of Contents ........................................................................................................... 3 1 Overview ................................................................................................................. 5 2 Instruction Description............................................................................................ 6 3 AT Instruction Listing ............................................................................................. 7 4 Basic AT Instruction Set.......................................................................................... 8 4.1 Overview ...................................................................................................... 8 4.2 Instructions ................................................................................................... 8 4.2.1 AT – Test AT startup .......................................................................... 8 4.2.2 AT+RST – Restart module ................................................................ 8 4.2.3 AT+GMR – View version info .......................................................... 8 4.2.4 AT+GSLP – Enter deep-sleep mode .................................................. 9 4.2.5 ATE – AT commands echo................................................................ 9 5 WIFI functions ........................................................................................................ 9 5.1 Overview ...................................................................................................... 9 5.2 Instructions ................................................................................................. 10 5.2.1 AT+CWMODE – WIFI mode ......................................................... 10 5.2.2 AT+CWJAP – Connect to AP ......................................................... 10 5.2.3 AT+CWLAP – List available APs................................................... 11 5.2.4 AT+CWQAP – Disconnect from AP ............................................... 11 5.2.5 AT+CWSAP – Configuration of softAP mode ............................... 12 5.2.6 AT+CWLIF – IP of stations ............................................................ 12 5.2.7 AT+CWDHCP – Enable/Disable DHCP ......................................... 13 5.2.8 AT+CIPSTAMAC – Set mac address of station ............................. 13 5.2.9 AT+CIPAPMAC – Set mac address of softAP ............................... 14 5.2.10 AT+ CIPSTA – Set ip address of station ......................................... 14 5.2.11 AT+ CIPAP – Set ip address of softAP ........................................... 14 6 TCP/IP Related ..................................................................................................... 16 6.1 Overview .................................................................................................... 16 6.2 TCP/IP ........................................................................................................ 16 6.2.1 AT+ CIPSTATUS – Information about connection ........................ 16 6.2.2 AT+CIPSTART – Start connection ................................................. 17 6.2.3 AT+CIPSEND – Send data.............................................................. 18 6.2.4 AT+CIPCLOSE – Close TCP or UDP connection .......................... 18 6.2.5 AT+CIFSR – Get local IP address ................................................... 19 6.2.6 AT+ CIPMUX – Enable multiple connections ................................ 20 6.2.7 AT+ CIPSERVER – Configure as TCP server ................................ 20 6.2.8 AT+ CIPMODE – Set transfer mode ............................................... 20 6.2.9 AT+ CIPSTO – Set server timeout .................................................. 21 6.2.10 AT+ CIUPDATE – Update through network .................................. 21 6.2.11 +IPD – Receive network data .......................................................... 22 3/ 23
Espressif Systems
June 16, 2014
ESP8266EX AT Instruction Set 7 Q&A ...................................................................................................................... 23
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Espressif Systems
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ESP8266EX AT Instruction Set
1 Overview This is the documentation for Espressif AT command instruction set and usage. Instruction set is divided into: Basic AT commands, Wifi function, AT commands, TCP / IP Toolbox AT commands.
Note: Please make sure that correct BIN(\esp_iot_sdk\bin\at) is already in the chip (ESP8266) before the AT commands listed in this documentation can be used.
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Espressif Systems
June 16, 2014
ESP8266EX AT Instruction Set
2 Instruction Description Each instruction set contains four types of AT commands. Type
Instruction Format
Description
Test
AT+=?
Query the Set command or internal parameters and its range values.
Query
AT+?
Returns the current value of the parameter.
Set
AT+=
Set the value of user-defined parameters in commands and run.
Execute
AT+
Runs commands with no user-defined parameters.
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,
for
example:
AT+CWSAP=“ESP756190”,”21030826”,1,4 4. Baud rate = 115200 5. AT instruction ends with “\r\n”
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Espressif Systems
June 16, 2014
ESP8266EX AT Instruction Set
3 AT Instruction Listing Instructions
Description
Basic AT
Test if AT startup
AT+RST
Restart
AT+GMR
View version info
AT+GSLP
Enter deep-sleep mode
ATE
AT commands echo
Wi-Fi AT+CWMODE
WIFI mode（station/softAP/station+softAP）
AT+CWJAP
Connect to AP
AT+CWLAP
Lists available APs
AT+CWQAP
Disconnect from AP
AT+CWSAP
Set parameters under AP mode
AT+CWLIF
Get stations’ ip which are connected to ESP8266 softAP
AT+CWDHCP
Enable/Disable DHCP
AT+CIPSTAMAC
Set mac address of ESP8266 station
AT+CIPAPMAC
Set mac address of ESP8266 softAP
AT+CIPSTA
Set ip address of ESP8266 station
AT+CIPAP
Set ip address of ESP8266 softAP
TCP/IP AT+CIPSTATUS
Get connection status
AT+CIPSTART
Establish TCP connection or register UDP port
AT+CIPSEND
Send data
AT+CIPCLOSE
Close TCP/UDP connection
AT+CIFSR
Get local IP address
AT+CIPMUX
Set multiple connections mode
AT+CIPSERVER
Configure as server
AT+CIPMODE
Set transmission mode
AT+CIPSTO
Set timeout when ESP8266 runs as TCP server
AT+CIUPDATE
For OTA（upgrade through network）
Data RX +IPD
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Data received from network
Espressif Systems
June 16, 2014
ESP8266EX AT Instruction Set
4 Basic AT Instruction Set 4.1 Overview Basic Instruction
Description
AT
Test AT startup
AT+RST
Restart module
AT+GMR
View version info
AT+GSLP
Enter deep-sleep mode
ATE
AT commands echo or not
4.2 Instructions 4.2.1 AT – Test AT startup AT – Test AT startup Type：execute Instruction：
Response：
AT
OK Param description：null
4.2.2 AT+RST – Restart module AT+RST – Restart module Type ：execute Response： Instruction： OK AT+RST Param description：null
4.2.3 AT+GMR – View version info AT+GMR – View version info Type ：execute Response： Instruction： OK AT+GMR Param description： < number > version info，length：8 bytes 8/ 23
Espressif Systems
June 16, 2014
ESP8266EX AT Instruction Set Note For example，response is 0017xxxxxx，then 0017 means the AT version.
4.2.4 AT+GSLP – Enter deep-sleep mode AT+GSLP – Enter deep-sleep mode Type ：set Response： Instruction：
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VAR: name of the variable which will be tested. VALUE: value to compare the variable with. OPER: one of the allowed operands. LESS: true if the variable is less ...
