How to Install the ESP8266 board on the Arduino IDE? ESP8266 is a Micro controller Board + WiFi Board from Espressif, It can develop program and upload to them. ESP8266 popular in the Internet of Things (IoT), Because ESP8266 is Open source electronics platform and low cost. Install the ESP8266 board on the Arduino IDE? Install Arduino IDE version 1.8 or later. See more ... - How to setup Arduino IDE? - How to Use Arduino IDE without install in windows? Start Arduino IDE and open Preferences window. Enter http://arduino.esp8266.com/stable/package_esp8266com_index.json into Additional Board Manager URLs field. Select Tools > Board > Boards Manager ... Search "ESP8266" and Install If successful download. Try to use ESP8266 Boards Tools > Board > Select ESP8266 Board In case of unsuccessful installation. Check out more information. Internet Connection. The ...