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.pio/libdeps/esp32-s3-devkitc-1/RTClib/examples/timestamp/timestamp.ino

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+/* Timestamp functions using a DS1307 RTC connected via I2C and Wire lib
+**
+** Useful for file name
+**		` SD.open(time.timestamp()+".log", FILE_WRITE) `
+**
+**
+** Created: 2015-06-01 by AxelTB
+** Last Edit:
+*/
+
+#include "RTClib.h"
+
+RTC_DS1307 rtc;
+
+void setup () {
+  Serial.begin(57600);
+
+#ifndef ESP8266
+  while (!Serial); // wait for serial port to connect. Needed for native USB
+#endif
+
+  if (! rtc.begin()) {
+    Serial.println("Couldn't find RTC");
+    Serial.flush();
+    while (1) delay(10);
+  }
+
+  if (! rtc.isrunning()) {
+    Serial.println("RTC is NOT running, let's set the time!");
+    // When time needs to be set on a new device, or after a power loss, the
+    // following line sets the RTC to the date & time this sketch was compiled
+    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
+    // This line sets the RTC with an explicit date & time, for example to set
+    // January 21, 2014 at 3am you would call:
+    // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
+  }
+
+  // When time needs to be re-set on a previously configured device, the
+  // following line sets the RTC to the date & time this sketch was compiled
+  // rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
+  // This line sets the RTC with an explicit date & time, for example to set
+  // January 21, 2014 at 3am you would call:
+  // rtc.adjust(DateTime(2014, 1, 21, 3, 0, 0));
+}
+
+void loop() {
+ DateTime time = rtc.now();
+
+ //Full Timestamp
+ Serial.println(String("DateTime::TIMESTAMP_FULL:\t")+time.timestamp(DateTime::TIMESTAMP_FULL));
+
+ //Date Only
+ Serial.println(String("DateTime::TIMESTAMP_DATE:\t")+time.timestamp(DateTime::TIMESTAMP_DATE));
+
+ //Full Timestamp
+ Serial.println(String("DateTime::TIMESTAMP_TIME:\t")+time.timestamp(DateTime::TIMESTAMP_TIME));
+
+ Serial.println("\n");
+
+ //Delay 5s
+ delay(5000);
+}