May 6, 2019 · This article is a guide for the ESP8266 GPIOs: pinout diagrams, their functions and how to use them. The ESP8266 12-E chip comes with 17 GPIO pins. Not all GPIOs are exposed in all ESP8266 development boards, some GPIOs are not recommended to use, and others have very specific functions.

Learn about ESP8266 Pinout along with in depth analysis of GPIO, ADC, SDIO, Control, SPI, I2C, UART, PWM, Power, GND and EN Pins.

Mar 23, 2024 · NodeMCU esp8266 wifi module is an open-source, low-cost, low-power MCU (microcontroller unit) development board. It has 17 GPIO pins (11 are Digital I/O pins), out of which one pin is an analog pin, 4 pins support PWM, 2 pairs are for UART (UART0 and UART1), and supports 1x SPI and 1x I2C protocol.

Apr 22, 2020 · NodeMCU is an open-source Lua based firmware and development board specially targeted for IoT based Applications. It includes firmware that runs on the ESP8266 Wi-Fi SoC from Espressif Systems, and hardware which is based on the ESP-12 module. NodeMCU has four pins available for SPI communication.

Jun 19, 2023 · The ESP8266 is equipped with a single SDIO (Secure Digital Input/Output Interface) specifically designed for connecting SD cards. It supports both SDIO v1.1 (4-bit 25 MHz) and SDIO v2.0 (4-bit 50 MHz) for efficient data transfer.

It supports both SDIO v1.1 at 4-bit 25 MHz and SDIO v2.0 at 4-bit 50 MHz. This feature enables seamless integration of SD cards with the ESP8266, providing high-speed data transfer capabilities and compatibility with different SDIO versions.

May 2, 2020 · GND is a ground pin of ESP8266 NodeMCU development board. I2C Pins are used to hook up all sorts of I2C sensors and peripherals in your project. Both I2C Master and I2C Slave are supported.

The following article give you an overview of the ESP8266 pinout of different boards I use. We compare the specifications of the different microcontroller and take a look at the pinout in detail. Also you find an overview of different possibilities of power supply.

This tutorial is about pinout reference of ESP8266 and different types of ESP8266 boards like Nodemcu, ESP01 , ESP12. First, I will give the overview of ESP8266 IC and its pinout and after that I will provide pinout reference of most popular ESP8266 boards.

Apr 10, 2020 · Let’s explore a detailed explanation of GPIO pins of ESP8266 NodeMCU and their functions. GPIO Pins of ESP8266 NodeMCU | ESP8266 pinout. The ESP8266 NodeMCU includes 17 GPIO pins that can be programmed for various functions by configuring the relevant registers. Each GPIO can be set with an . internal pull-up, pull-down, or high-impedance state.