hola soy Santiago y yo tengo un problema con el código de mi reloj con un lcd; aquí dejo el código,
porque yo no se como solucionar el problema
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd( 0x27, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE );
//SE AGREGA LIBRERÍAS PARA RTC
#include <ThreeWire.h>
#include <RtcDS1302.h>
ThreeWire myWire(4,7,2); // IO, SCLK, CE
RtcDS1302<ThreeWire> Rtc(myWire);
void setup ()
{
Serial.begin(57600);
Serial.print("compiled: ");
Serial.print(__DATE__);
Serial.println(__TIME__);
Rtc.Begin();
RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);
printDateTime(compiled);
Serial.println();
if (!Rtc.IsDateTimeValid())
{
// Common Causes:
// 1) first time you ran and the device wasn't running yet
// 2) the battery on the device is low or even missing
Serial.println("RTC lost confidence in the DateTime!");
Rtc.SetDateTime(compiled);
}
if (Rtc.GetIsWriteProtected())
{
Serial.println("RTC was write protected, enabling writing now");
Rtc.SetIsWriteProtected(false);
}
if (!Rtc.GetIsRunning())
{
Serial.println("RTC was not actively running, starting now");
Rtc.SetIsRunning(true);
}
RtcDateTime now = Rtc.GetDateTime();
if (now < compiled)
{
Serial.println("RTC is older than compile time! (Updating DateTime)");
Rtc.SetDateTime(compiled);
}
else if (now > compiled)
{
Serial.println("RTC is newer than compile time. (this is expected)");
}
else if (now == compiled)
{
Serial.println("RTC is the same as compile time! (not expected but all is fine)");
}
}
void loop ()
{
RtcDateTime now = Rtc.GetDateTime();
printDateTime(now);
Serial.println();
if (!now.IsValid())
{
// Common Causes:
// 1) the battery on the device is low or even missing and the power line was disconnected
Serial.println("RTC lost confidence in the DateTime!");
}
delay(10000); // ten seconds
}
#define countof(a) (sizeof(a) / sizeof(a[0]))
void printDateTime(const RtcDateTime& dt)
{
char datestring[20];
snprintf_P(datestring,
countof(datestring),
PSTR("%02u/%02u/%04u %02u:%02u:%02u"),
dt.Month(),
dt.Day(),
dt.Year(),
dt.Hour(),
dt.Minute(),
dt.Second() );
Serial.print(datestring);
}
#include <ThreeWire.h>
#include <RtcDS1302.h>
//SE CREA Y CONFIGURA OBJETO PARA MANEJAR RTC
ThreeWire myWire(4,5,2); //PINES IO, SCLK, CE -> DE RTC DS1302
RtcDS1302<ThreeWire> Rtc(myWire);
void setup () {
// SE INICAR MONITOR SERIE E IMPRIME FECHA Y HORA
Serial.begin(57600);
Serial.print("CONFIGURACIÓN INICIAL ");
Serial.print(__DATE__);
Serial.println(__TIME__);
lcd.begin(16,2); //SE INICIARLIZA LCD
Rtc.Begin();// SE INICIALIZA RTC
RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);//SE CONFIGURA FECHA Y HORA ACTUAL
printDateTime(compiled); //SE IMPRIME FECHA Y HORA
Serial.println();
}
void loop () {
//SE OBTENIE FECHA Y HORA ACTUAL Y SE ACTUALIZA
RtcDateTime now = Rtc.GetDateTime();
printDateTime(now);
Serial.println();
if (!now.IsValid()){
Serial.println("ERROR EN FECHA Y HORA");
}
delay(1000);RETARDO DE 1 SEGUNDO
}
#define countof(a) (sizeof(a) / sizeof(a[0]))
//FUNCION PARA IMPRIMIR FECHA Y HORA CON FORMATO ADECUADO
void printDateTime(const RtcDateTime& dt){
char datestring[20];
snprintf_P(datestring,
countof(datestring),
PSTR("%02u/%02u/%04u %02u:%02u:%02u"),//SE CONFURA FORMATO DE FECHA Y HORA
dt.Month(),
dt.Day(),
dt.Year(),
dt.Hour(),
dt.Minute(),
dt.Second() );
//SE IMPRIME LA FECHA Y HORA EN LCD
lcd.setCursor(0,0);
lcd.print("DATE ");
lcd.print(dt.Month());
lcd.print("/");
lcd.print(dt.Day());
lcd.print("/");
lcd.print(dt.Year());
lcd.setCursor(0,14);
lcd.print(" ");
lcd.setCursor(0,1);
lcd.print("TIME ");
lcd.print(dt.Hour());
lcd.print(":");
lcd.print(dt.Minute());
lcd.print(":");
lcd.print(dt.Second());
Serial.print(datestring);//SE IMPRIME EN MONITOR SERIE
}