Hello friends! Hope you are doing well. Today, we will have a look at the detailed Introduction to ESP8266 WiFi module. ESP8266 is a very low cost & user-friendly WiFi module, which develops a simple TCP/IP connection and can easily be interfaced with microcontrollers via Serial Port. The first chip in this series was ESP-01 that gained sheer attention in the market. In this tutorial, we will discuss the ESP8266 WiFi module along with its pinout, features, specifications, applications and datasheet. Let's dive in and nail down everything related to this device.

ESP8266 WiFi Module

• ESP8266 (also called ESP8266 Wireless Transceiver) is a cost-effective, easy-to-operate, compact-sized & low-powered WiFi module, designed by Espressif Systems, supports both TCP/IP and Serial Protocol.
• It's normally used in IoT cloud-based embedded projects and is considered the most widely used WiFi module because of its low cost and small size.
• It runs at an operating voltage of 3V and can handle a maximum voltage of around 3.6 V, so an external logic level converter is required if you are using a 5V supply.

• ESP8266 WiFi module can easily be interfaced with microcontrollers board (i.e. Arduino UNO) via Serial Port.
• There are numerous breakout boards available based on the ESP8266 WiFi Module (i.e. ESP8266 NodeMCU V3).
• Because of its compact size, it is mostly used in autonomous projects (i.e. Robotics).

                                                   ESP8266 Datasheet