How to Make a WiFi Extender: ESP8266 WiFi Range Extender Arduino
This article will explain how to prepare your Arduino IDE to upload sketches into the ESP8266 microcontroller and connect to an ESP-12E / ESP-12F board over USB. It is also possible to upload Arduino Sketches to ESP8266 over Wi-Fi.
Flash ESP8266 | WiFi Duck
Learn how to use the ESP8266 to give your Arduino or Raspberry Pi boards wireless capabilities.
ESP8266WiFi library — ESP8266 Arduino Core 3.1.2-21-ga348833 documentation
The ESP8266 can communicate over WiFi in two different modes. It can connect to an existing wireless hot spot, or access point, similar to the way you connect your phone or computer to the Internet. This is called "station" mode.
Arduino ESP8266 - wifi evt: 3 and wifi evt: 7 meaning?
The ESP8266 community created an add-on for the Arduino IDE that allows you to program the ESP8266 using the Arduino IDE and its programming language. This tutorial shows how to install the ESP8266 board in Arduino IDE whether you're using Windows, Mac OS X or Linux.