Update Marlin's firmware over WIFI with combination ESP8266 + ESP3D

[Surrizu]

Hello. I would like to make possible update the arduino firmware over WIFI.

My hardware combination is the following: Marlin 2.0 + RAMPS 1.4 + ESP8266(NodeMCU) + ESP3D

NodeMCU has only 4 wires connected to RAMPS --> Vcc / GND / Tx / Rx

BUT, I´m pretty sure that I´m missing something, because I believe I should connect any GPIO pin (of NodeMCU) to Arduino RESET pin. Then I think I could update Marlin firmware over wifi.

Does anyone have tried this??

[luc-github]

it is not that simple - you may want to try this lib https://github.com/ciminaghi/libdfu

and may be also https://github.com/esp8266/Arduino/tree/master/libraries/ESP8266AVRISP
https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266AVRISP/examples/Arduino_Wifi_AVRISP/Arduino_Wifi_AVRISP.ino