A project that allows Wi-Fi configuration via HTTP on devices based on ESP8266 nodeMCU.

Load this code into ESP8266 (flashed with NodeMCU) and you will get:

1. If device is rebooted >= 3 times in a row with <5 sec intervals between reboots, it goes into bootconf mode. That means that device:
   • creates an open Wi-Fi Access point "ESP8266-Config"
   • starts HTTP server at 192.168.4.1:80 (default NodeMCU DHCP IP)
   • provides an index.html that shows 2 fields: AP name and AP password. Data is sent from browser to another page on server that saves parameters into wificonfig.txt on ESP module.
   • To access the configuration page, connect any device (smartphone, tablet, notebook) to Wi-Fi AccessPoint ESP8266-Config and go to http://192.168.4.1 from browser.
2. If boot is normal (less than 3 reboots within 5 secs intervals), program reads wificonfig.txt and connects to specified network. Then it executes main.lua. At this moment main.lua starts led.lua that does PWM-blink a led on pin 3. Feel free to remove led.lua and modify main.lua