In order to flash the Arduino, you need to install Platform.io extension.

If the project does not build and raises there are no arguments to 'memcpy' that depend on a template parameter, then include <string.h> into the .pio/libdeps/ESP_EEPROM_ID####/src/ESP_EEPROM.h file.

There are three source files in src folder:

• main.cpp for loop() and setup() routines.
• APServer.cpp for the access point mode, the routine where basic socket setup happens.
• Socket.cpp for the voltage reading and backend connection management.

include/html_pages.h contains access point web page sources.