OTA-programming-Arduino-Pro-Mini-using-ESP8266 The ESP8266 downloads the OTA for the Arduino Pro Mini from a URL on an http server, then powercycles the Pro Mini pulsing PC6/RESET, during which it ...

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.

The ESP8266 downloads the OTA for the Arduino Pro Mini from a URL on an http server, then powercycles the Pro Mini pulsing PC6/RESET, during which it also drives the Mini's DTR low. After RESET goes ...