In this sense, programming the ESP8266 is a lot like programming an Arduino. static void ICACHE_FLASH_ATTR procTask ... On the ESP8266, though, it’s easy! Connect ESP8266 to AP in 8-lines of Code.

A lot of people have used ESP8266 to add inexpensive WiFi connectivity to their projects, but [Oscar] decided to take it one step further and program an Arduino over WiFi with the ESP8266. [Oscar] … ...