Вам надо запустить NL6621.exe. Там всё наглядно, хоть по китайски.
Описания AT команд вложены в NL6621_WIFI-Uart_SDK_V1.3.
И ещё - если:
if the factory button was pressed (gpio 10 is low level), then set to factory mode, else load user parameters. (SDA пин на NL6621-y1 подтянуть к +3.3В)
То log старта:
Load user's parameters.
(6)
(6)=========================================================
(6) ********************** NL6621 SDK *********************
(7) * *
(8) * Version: SDK1.11.00(10:33:39 Dec 15 2015) dbg *
(8) * *
(9) *******************************************************
(9)=========================================================
(10)USE STATIC IP ADDRESS:192.168.0.1 !!!
(10)SYS_EVT_LINK_UP
SDK Version:<1.11.00>; AT Version:<1.04.00> Release:<dbg>
DevMode:SOFTAP HWaddr:00:dd:16:01:00:6f
Inet addr:192.168.0.1
Netmask:255.255.255.0
Gateway:192.168.0.1
Channel:11, Encry:NONE AuthMode:OPEN WMM
ISABLE
+OK
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