I have a DS3231 RTC module and I am trying to read time off of it using my Arduino UNO through I2C. I'm using the sample code provided with the library but it doesn't seem to work.
The only thing I get out of the serial monitor is this:
20165-85-165 25:165:165
Temperature=254
I was getting the same thing with another RTC module as well and my guess (which probably isn't true) is that they might have overflown though there doesn't seem to be a reset pin.
#include <DS3231.h>
#include <Wire.h>
DS3231 Clock;
bool Century=false;
bool h12;
bool PM;
byte ADay, AHour, AMinute, ASecond, ABits;
bool ADy, A12h, Apm;
byte year, month, date, DoW, hour, minute, second;
void setup() {
// Start the I2C interface
Wire.begin();
#define oneTime
#ifdef oneTime
Clock.setSecond(50);//Set the second
Clock.setMinute(59);//Set the minute
Clock.setHour(11); //Set the hour
Clock.setDoW(5); //Set the day of the week
Clock.setDate(31); //Set the date of the month
Clock.setMonth(5); //Set the month of the year
Clock.setYear(13); //Set the year (Last two digits of the year)
#endif
// Start the serial interface
Serial.begin(115200);
}
void ReadDS3231()
{
int second,minute,hour,date,month,year,temperature;
second=Clock.getSecond();
minute=Clock.getMinute();
hour=Clock.getHour(h12, PM);
date=Clock.getDate();
month=Clock.getMonth(Century);
year=Clock.getYear();
temperature=Clock.getTemperature();
Serial.print("20");
Serial.print(year,DEC);
Serial.print('-');
Serial.print(month,DEC);
Serial.print('-');
Serial.print(date,DEC);
Serial.print(' ');
Serial.print(hour,DEC);
Serial.print(':');
Serial.print(minute,DEC);
Serial.print(':');
Serial.print(second,DEC);
Serial.print('\n');
Serial.print("Temperature=");
Serial.print(temperature);
Serial.print('\n');
}
void loop() {ReadDS3231();delay(1000);}
