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.

Espressif ESP8266 Specifications

General

Digital I/O Pins	17
Analog Input Pins	1
Wi-Fi	802.11 b/g/n
Operating Voltage	3.0V - 3.6V
Clock Speed	80 MHz / 160 MHz
Operating Temperature	-40°C to 125°C
Dimensions	24mm x 14mm
Processor	Tensilica L106 32-bit micro controller