What Is Esp8266 Wifi Module?
The ESP8266 is a Wi-Fi module that allows microcontrollers to connect to a Wi-Fi network and make simple Wi-Fi applications. It has a number of GPIO (general-purpose input/output) pins that can be used to interface with external devices and sensors. The specific number and arrangement of these pins can vary depending on the specific model of ESP8266 you are using. For example, the ESP-01 model of the ESP8266 has 8 pins, including power and ground pins, as well as GPIO pins, serial transmit and receive pins (TX and RX), and an output pin for controlling an external device such as an LED. Other models, such as the ESP-12, have more pins and additional functionality, such as an antenna connection and support for external memory. It is important to note that the ESP8266 is not a standalone microcontroller and must be used with a microcontroller board such as an Arduino wifi module in order to program and control it. The specific pin configuration of the ESP8266 will need to be considere