The ESP8266 is a popular Wi-Fi module widely used in Internet of Things (IoT) projects and wireless communication applications. Understanding the ESP8266 Pinout is essential for proper connection and utilization in circuit designs.
ESP8266 Pinout Let’s explore the ESP8266 pinout in detail.
The ESP8266 module typically consists of several pins that serve different functions. The specific pinout configuration may vary slightly depending on the module variant or development board used. Here is a general overview of the commonly used pins in the ESP8266:
GPIO (General Purpose Input/Output) Pins: These pins are used for general-purpose digital input and output operations. They can be configured as either input or output depending on the requirements of the project.
Power Pins:
VCC: This pin is used to supply power to the ESP8266 module. It typically requires a 3.3V power source. GND: This pin is connected to the ground (0V) reference. UART (Universal Asynchronous Receiver/Transmitter) Pins: TX: This pin is used for serial data transmission from the ESP8266 module. RX: This pin is used for serial data reception by the ESP8266 module. Reset (RST) Pin: This pin is used to reset the ESP8266 module. Pulling the RST pin to LOW momentarily resets the module. SPI (Serial Peripheral Interface) Pins: MOSI: Master Output Slave Input pin for SPI communication. MISO: Master Input Slave Output pin for SPI communication. SCLK: Serial Clock pin for SPI communication. CS/SS: Chip Select/Slave Select pin for SPI communication. I2C (Inter-Integrated Circuit) Pins: SDA: Serial Data pin for I2C communication. SCL: Serial Clock pin for I2C communication. Read More: ESP8266 Pinout