DS3231 RTC Driver for esp-idf
I forked from here.
git clone https://github.com/nopnop2002/esp-idf-ds3231
cd esp-idf-ds3231
make menuconfig
make flash
This mode set RTC initial value using NTP time Server.
You have to set these config value using menuconfig.
You have to set gpio & NTP Server using menuconfig.
This mode take out the time from a RTC clock.
You have to change mode using menuconfig.
This mode get time over NTP, and take out the time from a RTC clock.
Calculate time difference of NTP and RTC.
You have to change mode using menuconfig.