first commit

libraries/RTCLib_by_NeiroN/examples/ds1302/ds1302.ino

@@ -0,0 +1,54 @@
+// Date and time functions using a DS1302 RTC
+
+#include <RTClib.h>
+
+// Init rtc object
+//   DS1302 rtc;
+//   DS1302 rtc(ce_pin, sck_pin, io_pin);
+//
+// ce_pin  (RST): default 4
+// sck_pin (CLK): default 5
+// io_pin  (DAT): default 6
+DS1302 rtc;
+//DS1302 rtc(8, 6, 7);
+
+// buffer for DateTime.tostr
+char buf[20];
+
+void setup() {
+  Serial.begin(9600);
+  rtc.begin();
+
+  if (!rtc.isrunning()) {
+    Serial.println("RTC is NOT running!");
+    // following line sets the RTC to the date & time this sketch was compiled
+    rtc.adjust(DateTime(__DATE__, __TIME__));
+  }
+}
+
+void loop() {
+  DateTime now = rtc.now();
+
+  Serial.println(now.tostr(buf));
+
+  Serial.print(" since midnight 1970/01/01 = ");
+  Serial.print(now.unixtime());
+  Serial.print("s = ");
+  Serial.print(now.unixtime() / 86400L);
+  Serial.println("d");
+
+  // calculate a date which is 7 days and 30 seconds into the future
+  DateTime future(now + (7 * 86400L + 30));
+
+  Serial.print(" now + 7d + 30s: ");
+  Serial.println(future.tostr(buf));
+
+  // calculate a date which is 30 days before
+  DateTime past(now - TimeDelta(30 * 86400L));
+
+  Serial.print(" now - 30d: ");
+  Serial.println(past.tostr(buf));
+
+  Serial.println();
+  delay(3000);
+}