Hello friends,
First of all, we are celebrating Diwali here so wish you a very happy Diwali....
So here's the problem I am dealing with. Since last two weeks I am trying to connect DS1307 to arduino, but some how couldn't make it work. I have connected it to pins of arduino as
SCL -> A5
SDA -> A4
VCC 5V
GND - Made common with arduino
I used the following code
// Date and time functions using a DS1307 RTC connected via I2C and Wire lib
#include <Wire.h>
#include "RTClib.h"
#if defined(ARDUINO_ARCH_SAMD)
// for Zero, output on USB Serial console, remove line below if using programming port to program the Zero!
#define Serial SerialUSB
#endif
RTC_DS1307 rtc;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
void setup () {
#ifndef ESP8266
while (!Serial); // for Leonardo/Micro/Zero
#endif
Serial.begin(57600);
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
while (1);
}
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(daysOfTheWeek[now.dayOfTheWeek()]);
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 + TimeSpan(7,12,30,6));
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);
}
This I got from adafruit's documentation on RTC. here's the link for it
This is the output that I get
RTC is NOT running!
2165/165/165 (Tuesday) 165:165:85
since midnight 1/1/1970 = 1551138385s = 17952d
now + 7d + 30s: 2019/3/5 12:16:31
2165/165/165 (Tuesday) 165:165:85
since midnight 1/1/1970 = 1551138385s = 17952d
now + 7d + 30s: 2019/3/5 12:16:31
Seems like RTC might got have stuck with 165:165:85. The output also shows that RTC is NOT running!.
After I tried using lot of different libraries and also their example code but all in vain. The libraries that I used besides RTClib are,DS1307RTC, MD_DS1307, Sparkfun's DS1307 RTC, DS1307-master, DS1307-Emulator. But nothing worked for me I can't figure this out.
I even tried changing my IC, Changing my crystal. I have been using 10k pull-ups on I2C line, I even replaced battery and also tried while the battery was removed. But none of this thing worked. I even tried building RtC circuit on breadboard hoping that I might have mad any loose connection on the pcb, But that didn't worked either.
Any help to sort this out.....
Awaiting eagerly. Thanks in advance
