ESP8266 HTTP Temperature and Humidity Sensor

 A simple web server that displays current temperature and
 humidity read from DHT-22 (AM2302) sensor.

 Version 1.01

 Circuit:
 - NodeMCU (ESP12E) module for ESP8266
  - DHT-22 (AM2302) sensor attached to pin 2 for data and 5V
   and GND for power.
 
 created 22 Feb 2017
 by Predrag Supurovic

 http://pedja.supurovic.net/esp8266-temperature-and-humidity-web-service