Reference for ESP8266 using Arduino IDE - Complete Guide
ESP8266 ESP 12F ESP12 CH340G WeMos D1 Mini Module Nodemcu D1 Mini WiFi Development Board Micro USB 3.3V Based On Digital Pin|nodemcu 4m|d1 minimini nodemcu - AliExpress
NodeMCU ESP8266 Specifications, Overview and Setting Up
Introduction to NodeMCU ESP8266 on Arduino IDE full Guide |Electropeak