Exploring wireless capabilities with Wi-Fi

Wi-Fi, short for wireless fidelity, is a wireless communication technology that allows devices to connect to the internet and local networks without using physical cables. It operates on radio frequency signals, typically in 2.4 GHz and 5 GHz bands, and enables data transmission between devices such as smartphones, laptops, and IoT devices. Wi-Fi provides high-speed and reliable internet access, facilitating seamless connectivity and enabling users to access online resources, stream media, and communicate with other devices within the network range. In this section, we will explore how Wi-Fi protocols work, the capabilities of ESP32 Wi-Fi, and a few practical examples of using ESP32 as an access point and client. But first, let’s see how the Wi-Fi protocol works.

How the Wi-Fi protocol works

TheWi-Fi protocol, based on IEEE 802.11 standards, works by enabling devices to communicate wirelessly over radio frequencies. When a Wi...