This is the suggested installation method for end users.
http://arduino.esp8266.com/stable/package_esp8266com_index.jsoninto Additional Board Manager URLs field. You can add multiple URLs, separating them with commas.
You may optionally use staging boards manager package link:
http://arduino.esp8266.com/staging/package_esp8266com_index.json. This may contain some new features, but at the same time, some things might be broken.
This is the suggested installation method for contributors and library developers.
<Documents>/Arduino), or the directory of Arduino application itself, the choice is up to you.
Clone this repository into hardware/esp8266com/esp8266 directory. Alternatively, clone it elsewhere and create a symlink, if your OS supports them.
cd hardware mkdir esp8266com cd esp8266com git clone https://github.com/esp8266/Arduino.git esp8266
You should end up with the following directory structure:
Arduino | --- hardware | --- esp8266com | --- esp8266 | --- bootloaders --- cores --- doc --- libraries --- package --- tests --- tools --- variants --- platform.txt --- programmers.txt --- README.md --- boards.txt --- LICENSE
Download binary tools
cd esp8266/tools python get.py