Chao at 07:29, 17 September 2020

2020-09-17T07:29:31Z

New page

== Use Guide of AT Commands ==
{| class="wikitable sortable"
|-
! At Commands !! Header text !! Header text
|-
| Reset || AT+RST || restart the module, received some strange data, and "ready"
|-
| Set Work Mode AP+STA || AT+CWMODE=3 || change the working mode to 3, AP+STA, only use the most versatile mode 3, AT+RST may be necessary when this is done
|-
| Join Network || AT+CWLAP || search available wifi spot
|-
| Join Network || AT+CWJAP=''you ssid'', ''password'' || join my mercury router spot, e.g. AT+CWJAP=“TP-LINK_4226”,“1234567890”, password length must be correct, remove all the empty space in the command
|-
| Join Network || AT+CWJAP? || check if connected successfully, or use AT+CWJAP=?, or use AT+CIFSR to find your ip address
|-
| Cloud Update || AT+GMR || check current version, output AT+GMR AT version:0.30.0.0(Jul 3 2015 19:35:49) / SDK version:1.2.0 / Ai-Thinker Technology Co.,Ltd. / Build:1.2.0.A Aug 7 2015 17:21:44 / OK
|-
| Cloud Update || AT+CIUPDATE || get reply +CIPUPDATE:1, +CIPUPDATE:2, +CIPUPDATE:3, +CIPUPDATE:4, OK
|-
| TCP Client || AT+CIPMUX=1 || turn on multiple connection
|-
| TCP Client || AT+CIPSTART=4,"TCP","192,168.1.104",9999 || connect to remote TCP server 192.168.1.104 (the PC)
|-
| TCP Client || AT+CIPMODE=1 || optionally enter into data transmission mode
|-
| TCP Client || AT+CIPSEND=4,5 || send data via channel 4, 5 bytes length (see socket test result below, only "elect" received), link will be "unlink" when no data go through
|-
| TCP Server || AT+CIPSERVER=1,9999 || setup TCP server, on port 9999, 1 means enable
|-
| TCP Server || AT+CIFSR || check module IP address
|}
* Test, PC as a TCP client connect to module using socket test, send data
* Socket test running result, In the sockettest, do not tick the "secure" in TCP client, it causes unstable
<gallery>
File:ESP8266-test-1.png | CIPSTART
File:ESP8266-test-2.png | CIPSEND send data "Electrodragon"
File:ESP8266-test-3.png | Receive data
File:ESP8266-test-4.png
</gallery>

== AI Mod Added Commands ==
{| class="wikitable sortable"
|-
! description !! Header text !! return
|-
| Set GPIO value, 12 is gpio, 1 is set value || AT+CIOWRITE=12,1 || OK
|-
| Read GPIO value, 13 is gpio || AT+CIOREAD=13 1:HIGH || -
|-
| Read ADC || AT+CIOADC || Example
|-
| Set serial baud:
AT+CIOBAUD =<baudrate>,<databits>,<stopbits>,<parity>,<flow control>
||
* AT+CIOBAUD =115200
* AT+CIOBAUD =115200,8
* AT+CIOBAUD =115200,8,1,0,0
|| -
|-
| Check rams: || AT+CSYSHEAP ||
|-
| smart start: AT+CWSMARTSTART =<method>, AT+CWSMARTSTART to stop it
|| * 0: use AI-LINK
* '''1: use ESP-TOUCH'''
* 2: use AIR-KISS
||
|}

[[category: AT]]

[[category: ESP8266 Firmware]]

ESP8266 AT - Revision history

Chao at 07:29, 17 September 2020