Tutorial Setting Modul DS1307 Arduino

Hai kali ini saya akan membagikan tutorial tentang cara setting modul DS1307, kemarin saya cuma membagikan cara untuk menampilkan waktu,hari,bulan dan tahun tapi saya lupa memberi tahu cara untuk setting modul DS1307 hehehe.. ok tanpa berlama-lama simak tutorial berikut

Alat yang dibutuhkan

1. Arduino Uno
2. Kabel Jumper
3. Modul DS1307
4. Secangkir kopi hangat....

Setelah sudah siap ikuti instruksi dibawah ini

Setelah itu kalian buka Arduini IDE dan masukan kode berikut

#include <Wire.h>

#define DS3231_I2C_ADDRESS 104

// SCL - pin A5

// SDA - pin A4

// To set the clock, run the sketch and use the serial monitor.

// Enter T1124154091014; the code will read this and set the clock. See the code for full details.

//

byte seconds, minutes, hours, day, date, month, year;

char weekDay[4];

byte tMSB, tLSB;

float temp3231;

void setup()

{

  Wire.begin();

  Serial.begin(9600);

}

void loop()

{

  watchConsole();

  get3231Date();

  Serial.print(weekDay); Serial.print(", "); Serial.print(date, DEC); Serial.print("/"); Serial.print(month, DEC); Serial.print("/"); Serial.print(year, DEC); Serial.print(" - ");

  Serial.print(hours, DEC); Serial.print(":"); Serial.print(minutes, DEC); Serial.print(":"); Serial.print(seconds, DEC);

  Serial.print(" - Temp: "); Serial.println(get3231Temp());

  delay(1000);

}

// Convert normal decimal numbers to binary coded decimal

byte decToBcd(byte val)

{

  return ( (val/10*16) + (val%10) );

}

void watchConsole()

{

  if (Serial.available()) {      // Look for char in serial queue and process if found

    if (Serial.read() == 84) {      //If command = "T" Set Date

      set3231Date();

      get3231Date();

      Serial.println(" ");

    }

  }

}

void set3231Date()

{

//T(sec)(min)(hour)(dayOfWeek)(dayOfMonth)(month)(year)

//T(00-59)(00-59)(00-23)(1-7)(01-31)(01-12)(00-99)

//Example: 02-Feb-09 @ 19:57:11 for the 3rd day of the week -> T1157193020209

// T1124154091014

  seconds = (byte) ((Serial.read() - 48) * 10 + (Serial.read() - 48)); // Use of (byte) type casting and ascii math to achieve result.  

  minutes = (byte) ((Serial.read() - 48) *10 +  (Serial.read() - 48));

  hours   = (byte) ((Serial.read() - 48) *10 +  (Serial.read() - 48));

  day     = (byte) (Serial.read() - 48);

  date    = (byte) ((Serial.read() - 48) *10 +  (Serial.read() - 48));

  month   = (byte) ((Serial.read() - 48) *10 +  (Serial.read() - 48));

  year    = (byte) ((Serial.read() - 48) *10 +  (Serial.read() - 48));

  Wire.beginTransmission(DS3231_I2C_ADDRESS);

  Wire.write(0x00);

  Wire.write(decToBcd(seconds));

  Wire.write(decToBcd(minutes));

  Wire.write(decToBcd(hours));

  Wire.write(decToBcd(day));

  Wire.write(decToBcd(date));

  Wire.write(decToBcd(month));

  Wire.write(decToBcd(year));

  Wire.endTransmission();

}

void get3231Date()

{

  // send request to receive data starting at register 0

  Wire.beginTransmission(DS3231_I2C_ADDRESS); // 104 is DS3231 device address

  Wire.write(0x00); // start at register 0

  Wire.endTransmission();

  Wire.requestFrom(DS3231_I2C_ADDRESS, 7); // request seven bytes

  if(Wire.available()) {

    seconds = Wire.read(); // get seconds

    minutes = Wire.read(); // get minutes

    hours   = Wire.read();   // get hours

    day     = Wire.read();

    date    = Wire.read();

    month   = Wire.read(); //temp month

    year    = Wire.read();

       

    seconds = (((seconds & B11110000)>>4)*10 + (seconds & B00001111)); // convert BCD to decimal

    minutes = (((minutes & B11110000)>>4)*10 + (minutes & B00001111)); // convert BCD to decimal

    hours   = (((hours & B00110000)>>4)*10 + (hours & B00001111)); // convert BCD to decimal (assume 24 hour mode)

    day     = (day & B00000111); // 1-7

    date    = (((date & B00110000)>>4)*10 + (date & B00001111)); // 1-31

    month   = (((month & B00010000)>>4)*10 + (month & B00001111)); //msb7 is century overflow

    year    = (((year & B11110000)>>4)*10 + (year & B00001111));

  }

  else {

    //oh noes, no data!

  }

  switch (day) {

    case 1:

      strcpy(weekDay, "Sun");

      break;

    case 2:

      strcpy(weekDay, "Mon");

      break;

    case 3:

      strcpy(weekDay, "Tue");

      break;

    case 4:

      strcpy(weekDay, "Wed");

      break;

    case 5:

      strcpy(weekDay, "Thu");

      break;

    case 6:

      strcpy(weekDay, "Fri");

      break;

    case 7:

      strcpy(weekDay, "Sat");

      break;

  }

}

float get3231Temp()

{

  //temp registers (11h-12h) get updated automatically every 64s

  Wire.beginTransmission(DS3231_I2C_ADDRESS);

  Wire.write(0x11);

  Wire.endTransmission();

  Wire.requestFrom(DS3231_I2C_ADDRESS, 2);

  if(Wire.available()) {

    tMSB = Wire.read(); //2's complement int portion

    tLSB = Wire.read(); //fraction portion

   

    temp3231 = (tMSB & B01111111); //do 2's math on Tmsb

    temp3231 += ( (tLSB >> 6) * 0.25 ); //only care about bits 7 & 8

  }

  else {

    //oh noes, no data!

  }

  return temp3231;

}

Keterangan :
Setelah kalian upload code tersebut kalian buka serial monitor dan ketik kode berikut T1124154091014 Setelah itu tekan enter

1. Merah ganti sesuai detik
2. Orange ganti sesuai menit
3. kuning ganti sesuai jam
4. hijau sesuai hari
5. biru sesuai tanggal
6. abu-abu bulan
7. ungu sesuai tahun

Setelah itu tingga lihat waktu, tanggal, bulan. dan tahun akan berubah sesuai yang kau inginkan apa bila belum lihat cara untuk mencetak waktu dengan modul ini bisa klik DISINI

Sekian dari saya sampai jumpa di tutorial berikutnya bai bai....