PCF8563 RTC Driver for esp-idf
git clone https://github.com/nopnop2002/esp-idf-pcf8563
cd esp-idf-pcf8563
idf.py menuconfig
idf.py flash
PCF8563 | ESP32 | |
---|---|---|
SCL | -- | GPIO15(*1) |
SDA | -- | GPIO16(*1) |
GND | -- | GND |
VCC | -- | 3.3V |
(*1) You can change using menuconfig.
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.
This module has a large time lag.
I recommend the DS3231 RTC.
https://github.com/nopnop2002/esp-idf-ds3231