He used a DHT22 library written for the ESP8266 to read data from the sensor, and wrote a CGI script to display the data on a web page. [Martin] also added buttons to control a GPIO pin as a proof ...

Arduino has a library for quickly and easily setting up a simple web server on an ESP8622-based board, ... say BLE or 433mhz for example. And add some delay when the esp8266 is sleeping.