Hello uxomm! Thanks for your advice!
Im using DS3232 with this library ---> GitHub - Tecsmith/DS3232RTC: Arduino library for DS3232 RTC
But i got some error when i was compiling :fatal error: Streaming.h: No such file or directory
The library was imported by IDE, so i think it should properly installed.
And here's the circuit i wired, using 220 ohm and 220nf.
