Better documentation on how to upload the source code

[luiselizondo]

Hi, I'm trying to make a change to the source code but I'm kind of lost on how to upload the change to the button. Can you please elaborate on what would I need to make a change in the source code and upload the files to the button?

Thanks.

[volca]

Do you have one ESP8266 Flasher Rev2? We made it for programming ESP8266 module just like NodeMCU.