Arduino library for the P1AM-200 PCF8563 RTC chip.
Use the Arduino Library Manager to install.
Here is a simple example which shows the capabilities of the library
#include <PCF8563.h>
void setup(){
Serial.begin(9600);
while(!Serial){
;
}
Serial.println(PCF8563_RTC.getEpoch()); //Print RTC's epoch time
}
void loop(){
}