store data

[forkus2000]

I have two questions , please help !!!!

one : what is the better way to save data on esp32, i want to strore ssid, pass, and the days, hours,time of 20 diferents alarms, i need this values saved in eeprom because sometimes the power could be off..

two : what is the most effective and secure way to do upgrade the firmware of my esp32, can i maitain the files data saved before (point one) after the upgrade ?

thanks

[tele_player]

I would use SPIFFS. It’s not overwritten when a new sketch is uploaded.