This document introduces the specifications of ESP8266EX hardware, including overview, pin definitions, functional description, peripherals, and electrical characteristics, etc.

This document introduces the readers to the hardware specifications of ESP-WROOM-02.

This document introduces the specifications of ESP8285, including pin definitions, functional description, electrical specifications, package information, etc.

The ESP8266 Hardware Design Guidelines outlines recommended design practices when developing standalone or add-on systems based on the ESP8266 series of products, including the ESP8266, the ESP-WROOM modules, and ESP-Launcher—the development board.

This application note describes the recommended placement of the antenna on a host board to ensure optimal RF performance.

Schematics, PCB layout, gerber and BOM files of ESP8266-DevKitC-V1.

ESP-WROOM-S2 hardware downloading resources, manufacturing specifications, BOM, schematics.

ESP-WROOM-02D and ESP-WROOM-02U module reference design resources, including schematics, PCB layout, gerber files, and BOM lists.  

This document provides introduction to the interfaces integrated on ESP8266. Functional overview, parameter configuration, function description, application demos and other information is included.

For ESP8266_RTOS_SDK V3.0 and later versions (ESP-IDF style).

The document lists the FAQ about ESP8266EX and the answers.

This document introduces the ESP8266 AT commands and explains how to use them and provides examples of several common AT commands.

This document is the SSL user guide based on ESP8266_NONOS_SDK.

This document is the ESP8266 Non-OS SDK IoT Demo Guide.

This document is the API reference for ESP8266_NONOS_SDK_V2.2.0.

This document introduces the ESP8266 sleep modes and some relevant low-power solutions.

This document introduces a downloading protocol for ESP8266 firmware.

This guide introduces the methods of identifying the causes of ESP8266 reset and common Fatal exceptions.

The document outlines how PROGMEM may be used to save RAM on the ESP8266EX when using the Arduino IDE.

This document explains how to upgrade ESP8266 firmware over Espressif Cloud through Wi-Fi.

This document takes ESP-LAUNCHER and ESP-WROOM-02 as examples to introduce how to use the ESP8266 SDK V2.X and earlier versions.

For the new ESP8266_RTOS_SDK (ESP-IDF style) V3.0 and later versions, please see ESP8266_RTOS_SDK/docs.

This document is a quick user guide to getting started with the old version ESP8266 SDK V2.X and earlier versions.

For the new ESP8266_RTOS_SDK (ESP-IDF style) V3.0 and later versions, please see ESP8266_RTOS_SDK/docs.

This document introduces the ESP-NOW technology developed by Espressif. The document focuses on ESP-NOW features, their uses and the demo code.