Connecting one peripheral to anything is the cornerstone of the IOT’s functionality. The ESP 8266 is one of several microcontroller modules developed for the purpose of receiving commands and sharing valuable data through wireless media. In this section, the author will explain how to connect the ESP8266 to a Wi-Fi hotspot. Make sure you have the SSID and password for legal communication.

The source code is visible in the captured Arduino program below:

if the internal LED on the ESP8266 turns on, it indicates that the ESP8266 has successfully connected to Wi-Fi.