gistfile1.cpp

#include <Wire.h>
#include <RTClib.h>

#define SDA1_PIN 21
#define SCL1_PIN 22

RTC_DS3231 rtc;

void setup() {
  Wire1.begin(SDA1_PIN, SCL1_PIN); // Initialize Wire1
  if (!rtc.begin(&Wire1)) {        // Pass Wire1 to RTC
    Serial.println("Couldn't find RTC");
    while (1);
  }
  if (rtc.lostPower()) {
    rtc.adjust(DateTime(2025, 7, 2, 14, 30, 0)); // Set to current time
  }
  Serial.begin(115200);
  DateTime now = rtc.now();
  Serial.println(now.timestamp());
}

void loop() {}