Open The Weather Station Example - Espressif ESP8266 User Manual

B. Open the Weather Station Example
You have now installed the three required libraries. Often Arduino libraries contain example
sketches which behave like a template to kick-start your project. If you have already worked
with the Arduino IDE you might have used other demo sketches before. In the last chapter
we used the Wifi Scanner Sketch. Now we are going to use the WeatherStation template to
get started. Go to File > Examples > ESP8266 Weather Station > WeatherStationDemo Save
the new sketch with a good name in a location you will remember - but leave it open.