Ds3231 modulo reloj con pila para arduino/funduino

Especificaciones

El módulo DS3231 permitirá que podamos llevar un registro detallado del transcurso del tiempo en nuestro microcontrolador. Los proyectos que podemos llevar a cabo con este módulo van desde estaciones de sensores hasta alarmas y sondas de registro de datos.


Especificaciones:
Temperature range: -40 to +85; Timing accuracy : ± 5ppm (±0.432 seconds / day)
Provide battery backup for continuous timing
Low power consumption
Device package and function compatible with DS3231
Complete clock calendar function contains seconds and minutes, hour, week, date, month, and year timing and provides leap year compensation until 2100.
Two calendar clock
Output: 1Hz and 32.768kHz
Reset output and Input Debounce of Pushbutton
High speed (400kHz), I2C serial bus
Supply voltage: +3.3V to +5.5V
Digital temperature sensor with a precision of±3℃
Working temperature: -40 ~ C to +85 ~ C
16 pins Small Outline Package (300mil)
Certified by American Association of Underwriters Laboratories (UL)
Size: 13.7x13.5mm


#include
#include "DS3231.h"
DS3231 RTC; //Create the DS3231 object
char weekDay[][4] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" };
//year, month, date, hour, min, sec and week-day(starts from 0 and goes to 6)
//writing any non-existent time-data may interfere with normal operation of the RTC.
//Take care of week-day also.
DateTime dt(2011, 11, 10, 15, 18, 0, 5);//open the series port and you can check time here or make a change to the time as needed.
void setup ()
{ Serial.begin(57600);//set baud rate to 57600
Wire.begin();
RTC.begin();
RTC.adjust(dt); //Adjust date-time as defined 'dt' above
}
void loop ()
{
DateTime now = RTC.now(); //get the current date-time
Serial.print(now.year(), DEC);
Serial.print('/');
Serial.print(now.month(), DEC);
Serial.print('/');
Serial.print(now.date(), 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(weekDay[now.dayOfWeek()]);
Serial.println();
delay(1000);
}