Connecting ESPDUINO (ESP-13) to Arduino IDE
https://github.com/esp8266/Arduino was the most helpful place to start. You need to
- open the Arduino IDE
- Open ‘Preferences’ menu under ‘File’
- Add the url http://arduino.esp8266.com/stable/package_esp8266com_index.json to the ‘Additional Boards Manager URLs’ input box
- click ‘OK’
- open menus ‘Tools’ -> ‘Board’ -> ‘Boards Manager’
- find the esp8266 by searching in search filter input
- Click the esp8266 and click install
You should then be able to connect to and upload sketches to the espduino board.