DS1307 Serial Real Time Clock

DS1307 Serial Real Time Clock
Çeşme:
http://www.mind-tek.net/ds1307_en.php
#include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 5, 4, 3, 2); // Date and time functions using a DS1307 RTC connected via I2C and Wire lib #include <Wire.h> #include "RTClib.h" RTC_DS1307 rtc; void setup () { Serial.begin(9600); lcd.begin(16, 2); #ifdef AVR Wire.begin(); #else Wire1.begin(); // Shield I2C pins connect to alt I2C bus on Arduino Due #endif 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(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 now = rtc.now(); /* Serial.print(now.year(), DEC); Serial.print('/'); Serial.print(now.month(), DEC); Serial.print('/'); Serial.print(now.day(), DEC); Serial.print(' '); Serial.print(now.hour(), DEC); Serial.print(':'); Serial.print(now.minute(), DEC); Serial.print(':'); Serial.print(now.second(), DEC); Serial.println(); Serial.print(" since midnight 1/1/1970 = "); 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.unixtime() + 7 * 86400L + 30); Serial.print(" now + 7d + 30s: "); Serial.print(future.year(), DEC); Serial.print('/'); Serial.print(future.month(), DEC); Serial.print('/'); Serial.print(future.day(), DEC); Serial.print(' '); Serial.print(future.hour(), DEC); Serial.print(':'); Serial.print(future.minute(), DEC); Serial.print(':'); Serial.print(future.second(), DEC); Serial.println(); Serial.println(); delay(3000); */ lcd.clear(); lcd.setCursor(0, 0); lcd.print("SAGAT: "+dbl(now.hour())+":"+dbl(now.minute())+":"+dbl(now.second())); lcd.setCursor(0, 1); lcd.print(dbl(now.day())+"."+dbl(now.month())+"."+String(now.year())); delay(500); } String dbl(int n) { String r = ""; if (n < 10) { r = "0"; r += n; } else { r = String(n); } return r; }