For ESP8266 and ESP32 edit configuration with web page and save it on SPIFFS. If no connection to a local WLAN exists configuration over web page can be done using an access point
in lines 52 and 56 of file WebConfig/WebConfig.cpp
both text 'width:100%;\n' should be replaced by 'width:100%%;\n'
in order to produce a '%' when used as format.
in lines 52 and 56 of file WebConfig/WebConfig.cpp both text 'width:100%;\n' should be replaced by 'width:100%%;\n' in order to produce a '%' when used as format.