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Title Body Platform Version Release Datesort ascending Download
ESP8266EX Datasheet

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

PDF V6.3 2019.12.12
ESP8266 Hardware Design Guidelines

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.

PDF V2.6 2018.12.24
ESP8266 Hardware Matching Guide

This document introduces frequency offset tuning and antenna impedance matching for ESP8266 in order to achieve optimum RF performance.

PDF V1.1 2018.11.22

More information on GitHub

Development projects are freely distributed under Espressif's MIT license on GitHub.