Hello,
I have a program which I am using to count down days left until an event. When I upload the program, the time get set correctly, but is never updated.
I tried using one of the examples afterwards, to read the time back. But the time just stays the same and is not updated.
I am using this DS3231:
Code I am reading the time from the ds3231 with:
/* Timestamp functions using a DS1307 RTC connected via I2C and Wire lib
**
** Useful for file name
** ` SD.open(time.timestamp()+".log", FILE_WRITE) `
**
**
** Created: 2015-06-01 by AxelTB
** Last Edit:
*/
#include "RTClib.h"
RTC_DS1307 rtc;
void setup () {
Serial.begin(9600);
#ifndef ESP8266
while (!Serial); // wait for serial port to connect. Needed for native USB
#endif
if (! rtc.begin()) {
Serial.println("Couldn't find RTC");
Serial.flush();
while (1) delay(10);
}
if (! rtc.isrunning()) {
Serial.println("RTC is NOT running, let's set the time!");
// When time needs to be set on a new device, or after a power loss, the
// 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));
}
// When time needs to be re-set on a previously configured device, the
// 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 time = rtc.now();
//Full Timestamp
Serial.println(String("DateTime::TIMESTAMP_FULL:\t")+time.timestamp(DateTime::TIMESTAMP_FULL));
//Date Only
Serial.println(String("DateTime::TIMESTAMP_DATE:\t")+time.timestamp(DateTime::TIMESTAMP_DATE));
//Full Timestamp
Serial.println(String("DateTime::TIMESTAMP_TIME:\t")+time.timestamp(DateTime::TIMESTAMP_TIME));
Serial.println("\n");
//Delay 5s
delay(5000);
}
And this is the RTC part in my code in my program:
// Date and time functions using a DS3231 RTC connected via I2C and Wire lib
#include "RTClib.h"
RTC_DS3231 rtc;
void setup () {
if (! rtc.begin()) {
Serial.flush();
while (1) delay(10);
}
if (rtc.lostPower()) {
// When time needs to be set on a new device, or after a power loss, the
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
}
}
The result is that the time is standing still, like here.
Does anyone have any suggestion what this might be? Am I using the correct library?
