#02 | NodeMCU ESP8266 Pin Structure and usage.

NodeMCU ESP8266 is a versatile 32-bit microcontroller chip renowned for its WiFi capabilities. It features a total of 30 physical pins, categorized into 13 digital GPIO ports and 1 analog input pin (A0). Additionally, there are 7 power-related pins, comprising three 3.3V pins and four GND pins, crucial for providing stable electrical connections and power distribution within circuits.
Exploring the pinout of ESP8266 reveals its comprehensive connectivity options, including UART (Universal Asynchronous Receiver-Transmitter), I2C (Inter-Integrated Circuit), SPI (Serial Peripheral Interface), and other protocol-specific pins. These pins facilitate seamless communication with various peripherals, sensors, and devices, enabling robust IoT (Internet of Things) applications and embedded systems development.
NodeMCU ESP8266, microcontroller chip, WiFi enabled, 30 physical pins, digital GPIO ports, analog input, power distribution, UART, I2C, SPI, IoT applications

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