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This tutorial explains the ESP32 Pinout in detail. ESP32 is a microcontroller board that has a number of GPIO pins for several functions or purposes. These pins are specified for a specific function and some pins already have fixed functionality. ESP32 Microcontroller has a greater number of pins when compared to ESP8266 or Arduino UNO boards. Knowledge about the pins is essential to start working with ESP32. The main goal of this tutorial is to discuss detailed pin descriptions, functionality, and purpose.
To know about pin detail we read summarized information about the ESP32 board.
ESP32 Microcontroller has multiple variants that differ in functionality, shape, and purposes. In this article, we are going to cover the detailed pinout of the 30-pin ESP32 board that comes with the ESP32-WROOM-32 microcontroller It is also called WROOM32.
ESP32 Chip has a total of 48 pins and 30 pins are exposed to the user while 18 pins are integrated inside the Microcontroller. Some ESP32 boards contain extra six SPI flash integrated pins so these boards are called 36 pins boards.
The below image represents the detailed pinout of the ESP32 30-pin variant containing all its peripherals which we discuss one by one in detail.
This variant contains a total of 48 pins out of which only 30 pins are available for external interfacing remaining 18 pins are integrated inside the chip for communication purposes.