Arduino: RTC and LCD

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Revision as of 18:38, 6 May 2017 by Onnowpurbo (talk | contribs) (Created page with " Source: #include <Wire.h> #include “RTClib.h” #include <LiquidCrystal.h> LiquidCrystal lcd(12, 11, 5, 4, 3, 2); RTC_DS1307 RTC; void setup () { Serial.begin(9...")
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Source:

#include <Wire.h>
#include “RTClib.h”
#include <LiquidCrystal.h>
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
RTC_DS1307 RTC;

void setup () {
Serial.begin(9600);
Wire.begin();
RTC.begin();
lcd.begin(20, 4);

pinMode(8,OUTPUT);
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();
lcd.setCursor(0, 0);
lcd.print(now.day(), DEC);
lcd.print(‘/’);
lcd.print(now.month(), DEC);
lcd.print(‘/’);
lcd.print(now.year(), DEC);
lcd.print(‘ ‘);
lcd.setCursor(0, 1);
if (now.hour()<10)
lcd.print(‘0’);
lcd.print(now.hour(), DEC);
lcd.print(‘:’);
if (now.minute()<10)
lcd.print(‘0’);
lcd.print(now.minute(), DEC);
lcd.print(‘:’);
if (now.second()<10)
lcd.print(‘0’);
lcd.print(now.second(), DEC);
delay(1000);
}