terárium/DS3231_casocislo

void ds3231ts(void){
    Wire.begin();
    Serial.begin(9600);
    // set the initial time here:
    // DS3231 seconds, minutes, hours, day, date, month, year
    // setDS3231time(30,42,21,4,26,11,14);
}
/*void setDS3231time(byte second, byte minute, byte hour, byte dayOfWeek, byte dayOfMonth, byte month, byte year){
    // sets time and date data to DS3231
    Wire.beginTransmission(DS3231_I2C_ADDRESS);
    Wire.write(0); // set next input to start at the seconds register
    Wire.write(decToBcd(second)); // set seconds
    Wire.write(decToBcd(minute)); // set minutes
    Wire.write(decToBcd(hour)); // set hours
    Wire.write(decToBcd(dayOfWeek)); // set day of week (1=Sunday, 7=Saturday)
    Wire.write(decToBcd(dayOfMonth)); // set date (1 to 31)
    Wire.write(decToBcd(month)); // set month
    Wire.write(decToBcd(year)); // set year (0 to 99)
    Wire.endTransmission();
}*/
void readDS3231time(byte *second, byte *minute, byte *hour, byte *dayOfWeek, byte *dayOfMonth, byte *month, byte *year){
    Wire.beginTransmission(DS3231_I2C_ADDRESS);
    Wire.write(0); // set DS3231 register pointer to 00h
    Wire.endTransmission();
    Wire.requestFrom(DS3231_I2C_ADDRESS, 7);
    // request seven bytes of data from DS3231 starting from register 00h
    *second = bcdToDec(Wire.read() & 0x7f);
    *minute = bcdToDec(Wire.read());
    *hour = bcdToDec(Wire.read() & 0x3f);
    *dayOfWeek = bcdToDec(Wire.read());
    *dayOfMonth = bcdToDec(Wire.read());
    *month = bcdToDec(Wire.read());
    *year = bcdToDec(Wire.read());
}

void displayTime(void){
    byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
    // retrieve data from DS3231
    readDS3231time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month, &year);
    // send it to the serial monitor
    Serial.print(hour, DEC);
    // convert the byte variable to a decimal number when displayed
    Serial.print(":");
    if (minute<10){
        Serial.print("0");
    }
    Serial.print(minute, DEC);
    Serial.print(":");
    if (second<10){
        Serial.print("0");
    }
    Serial.print(second, DEC);
    Serial.print(" ");
    Serial.print(dayOfMonth, DEC);
    Serial.print("/");
    Serial.print(month, DEC);
    Serial.print("/");
    Serial.print(year, DEC);
    Serial.print(" Den: ");
    switch(dayOfWeek){
        case 1:
            Serial.println("Neděle");
            break;
        case 2:
            Serial.println("Pondělí");
            break;
        case 3:
            Serial.println("Úterý");
            break;
        case 4:
            Serial.println("Středa");
            break;
        case 5:
            Serial.println("Čtvrtek");
            break;
        case 6:
            Serial.println("Pátek");
            break;
        case 7:
            Serial.println("Sobota");
            break;
               }

             lcd.setCursor(3, 3);
             lcd.print("Cas : ");
             lcd.print(hour +1);
             lcd.print(":");
                if (minute<10){
                  lcd.print("0");
                   }
             lcd.print(minute);
             lcd.print(":");
                if (second<10){
                  lcd.print("0");
                    }
             lcd.print(second);
              //delay(1000);

}



void casocislo(void)
{
  byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
  readDS3231time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month, &year);
  int timestamp = (hour + 1)*60  + minute ;
  Serial.println(timestamp);
}

 void zobraz(void)
 {
    displayTime(); // display the real-time clock data on the Serial Monitor,
    casocislo();
    //delay(1000); // every second
 }