The cpu on the ESP8266 is a 32 bit risc running at 80 Mhz, the arduino is an 8 bit AVR running at something less, maybe 32 Mhz. Not only that, recent releases of the Arduino GUI support the ...

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] … ...