ARDUINO WATCH

/*
This Code has extra features
including a XY positioning function on Display
and a Line Draw function on Nokia 3310 LCD
It is modded from the original
*/
#include "Wire.h"
#define DS3231_I2C_ADDRESS 0x68

// Convert normal decimal numbers to binary coded decimal
byte decToBcd(byte val)
{
  return( (val/10*16) + (val%10) );
}

// Convert binary coded decimal to normal decimal numbers
byte bcdToDec(byte val)
{
  return( (val/16*10) + (val%16) );
}

// Mods by Jim Park
// jim(^dOt^)buzz(^aT^)gmail(^dOt^)com
// hope it works for you
#define PIN_SCE   7  // LCD CS  .... Pin 3
#define PIN_RESET 6  // LCD RST .... Pin 1
#define PIN_DC    5  // LCD Dat/Com. Pin 5
#define PIN_SDIN  4  // LCD SPIDat . Pin 6
#define PIN_SCLK  3  // LCD SPIClk . Pin 4
                     // LCD Gnd .... Pin 2
                     // LCD Vcc .... Pin 8
                     // LCD Vlcd ... Pin 7

#define LCD_C     LOW
#define LCD_D     HIGH

#define LCD_X     84
#define LCD_Y     48
#define LCD_CMD   0

int a = 0;

static const byte ASCII[][5] =
{
 {0x00, 0x00, 0x00, 0x00, 0x00} // 20
,{0x00, 0x00, 0x5f, 0x00, 0x00} // 21 !
,{0x00, 0x07, 0x00, 0x07, 0x00} // 22 "
,{0x14, 0x7f, 0x14, 0x7f, 0x14} // 23 #
,{0x24, 0x2a, 0x7f, 0x2a, 0x12} // 24 $
,{0x23, 0x13, 0x08, 0x64, 0x62} // 25 %
,{0x36, 0x49, 0x55, 0x22, 0x50} // 26 &
,{0x00, 0x05, 0x03, 0x00, 0x00} // 27 '
,{0x00, 0x1c, 0x22, 0x41, 0x00} // 28 (
,{0x00, 0x41, 0x22, 0x1c, 0x00} // 29 )
,{0x14, 0x08, 0x3e, 0x08, 0x14} // 2a *
,{0x08, 0x08, 0x3e, 0x08, 0x08} // 2b +
,{0x00, 0x50, 0x30, 0x00, 0x00} // 2c ,
,{0x08, 0x08, 0x08, 0x08, 0x08} // 2d -
,{0x00, 0x60, 0x60, 0x00, 0x00} // 2e .
,{0x20, 0x10, 0x08, 0x04, 0x02} // 2f /
,{0x3e, 0x51, 0x49, 0x45, 0x3e} // 30 0
,{0x00, 0x42, 0x7f, 0x40, 0x00} // 31 1
,{0x42, 0x61, 0x51, 0x49, 0x46} // 32 2
,{0x21, 0x41, 0x45, 0x4b, 0x31} // 33 3
,{0x18, 0x14, 0x12, 0x7f, 0x10} // 34 4
,{0x27, 0x45, 0x45, 0x45, 0x39} // 35 5
,{0x3c, 0x4a, 0x49, 0x49, 0x30} // 36 6
,{0x01, 0x71, 0x09, 0x05, 0x03} // 37 7
,{0x36, 0x49, 0x49, 0x49, 0x36} // 38 8
,{0x06, 0x49, 0x49, 0x29, 0x1e} // 39 9
,{0x00, 0x36, 0x36, 0x00, 0x00} // 3a :
,{0x00, 0x56, 0x36, 0x00, 0x00} // 3b ;
,{0x08, 0x14, 0x22, 0x41, 0x00} // 3c <
,{0x14, 0x14, 0x14, 0x14, 0x14} // 3d =
,{0x00, 0x41, 0x22, 0x14, 0x08} // 3e >
,{0x02, 0x01, 0x51, 0x09, 0x06} // 3f ?
,{0x32, 0x49, 0x79, 0x41, 0x3e} // 40 @
,{0x7e, 0x11, 0x11, 0x11, 0x7e} // 41 A
,{0x7f, 0x49, 0x49, 0x49, 0x36} // 42 B
,{0x3e, 0x41, 0x41, 0x41, 0x22} // 43 C
,{0x7f, 0x41, 0x41, 0x22, 0x1c} // 44 D
,{0x7f, 0x49, 0x49, 0x49, 0x41} // 45 E
,{0x7f, 0x09, 0x09, 0x09, 0x01} // 46 F
,{0x3e, 0x41, 0x49, 0x49, 0x7a} // 47 G
,{0x7f, 0x08, 0x08, 0x08, 0x7f} // 48 H
,{0x00, 0x41, 0x7f, 0x41, 0x00} // 49 I
,{0x20, 0x40, 0x41, 0x3f, 0x01} // 4a J
,{0x7f, 0x08, 0x14, 0x22, 0x41} // 4b K
,{0x7f, 0x40, 0x40, 0x40, 0x40} // 4c L
,{0x7f, 0x02, 0x0c, 0x02, 0x7f} // 4d M
,{0x7f, 0x04, 0x08, 0x10, 0x7f} // 4e N
,{0x3e, 0x41, 0x41, 0x41, 0x3e} // 4f O
,{0x7f, 0x09, 0x09, 0x09, 0x06} // 50 P
,{0x3e, 0x41, 0x51, 0x21, 0x5e} // 51 Q
,{0x7f, 0x09, 0x19, 0x29, 0x46} // 52 R
,{0x46, 0x49, 0x49, 0x49, 0x31} // 53 S
,{0x01, 0x01, 0x7f, 0x01, 0x01} // 54 T
,{0x3f, 0x40, 0x40, 0x40, 0x3f} // 55 U
,{0x1f, 0x20, 0x40, 0x20, 0x1f} // 56 V
,{0x3f, 0x40, 0x38, 0x40, 0x3f} // 57 W
,{0x63, 0x14, 0x08, 0x14, 0x63} // 58 X
,{0x07, 0x08, 0x70, 0x08, 0x07} // 59 Y
,{0x61, 0x51, 0x49, 0x45, 0x43} // 5a Z
,{0x00, 0x7f, 0x41, 0x41, 0x00} // 5b [
,{0x02, 0x04, 0x08, 0x10, 0x20} // 5c bekslesz
,{0x00, 0x41, 0x41, 0x7f, 0x00} // 5d ]
,{0x04, 0x02, 0x01, 0x02, 0x04} // 5e ^
,{0x40, 0x40, 0x40, 0x40, 0x40} // 5f _
,{0x00, 0x01, 0x02, 0x04, 0x00} // 60 `
,{0x20, 0x54, 0x54, 0x54, 0x78} // 61 a
,{0x7f, 0x48, 0x44, 0x44, 0x38} // 62 b
,{0x38, 0x44, 0x44, 0x44, 0x20} // 63 c
,{0x38, 0x44, 0x44, 0x48, 0x7f} // 64 d
,{0x38, 0x54, 0x54, 0x54, 0x18} // 65 e
,{0x08, 0x7e, 0x09, 0x01, 0x02} // 66 f
,{0x0c, 0x52, 0x52, 0x52, 0x3e} // 67 g
,{0x7f, 0x08, 0x04, 0x04, 0x78} // 68 h
,{0x00, 0x44, 0x7d, 0x40, 0x00} // 69 i
,{0x20, 0x40, 0x44, 0x3d, 0x00} // 6a j
,{0x7f, 0x10, 0x28, 0x44, 0x00} // 6b k
,{0x00, 0x41, 0x7f, 0x40, 0x00} // 6c l
,{0x7c, 0x04, 0x18, 0x04, 0x78} // 6d m
,{0x7c, 0x08, 0x04, 0x04, 0x78} // 6e n
,{0x38, 0x44, 0x44, 0x44, 0x38} // 6f o
,{0x7c, 0x14, 0x14, 0x14, 0x08} // 70 p
,{0x08, 0x14, 0x14, 0x18, 0x7c} // 71 q
,{0x7c, 0x08, 0x04, 0x04, 0x08} // 72 r
,{0x48, 0x54, 0x54, 0x54, 0x20} // 73 s
,{0x04, 0x3f, 0x44, 0x40, 0x20} // 74 t
,{0x3c, 0x40, 0x40, 0x20, 0x7c} // 75 u
,{0x1c, 0x20, 0x40, 0x20, 0x1c} // 76 v
,{0x3c, 0x40, 0x30, 0x40, 0x3c} // 77 w
,{0x44, 0x28, 0x10, 0x28, 0x44} // 78 x
,{0x0c, 0x50, 0x50, 0x50, 0x3c} // 79 y
,{0x44, 0x64, 0x54, 0x4c, 0x44} // 7a z
,{0x00, 0x08, 0x36, 0x41, 0x00} // 7b {
,{0x00, 0x00, 0x7f, 0x00, 0x00} // 7c |
,{0x00, 0x41, 0x36, 0x08, 0x00} // 7d }
,{0x08, 0x04, 0x08, 0x04, 0x00} // 7e ~
,{0x00, 0x06, 0x09, 0x09, 0x06} // 7f →
,{0x10, 0x2a, 0x2a, 0x6a, 0x7c} // 80 ą
,{0x38, 0x44, 0x46, 0x45, 0x20} // 81 ć
,{0x1c, 0x2a, 0x2a, 0x6a, 0x4c} // 82 ę
,{0x00, 0x49, 0x7f, 0x44, 0x00} // 83 ł
,{0x7c, 0x08, 0x06, 0x05, 0x78} // 84 ń
,{0x38, 0x44, 0x46, 0x45, 0x38} // 85 ó
,{0x48, 0x54, 0x56, 0x55, 0x20} // 86 ś
,{0x44, 0x64, 0x56, 0x4d, 0x44} // 87 ź
,{0x44, 0x64, 0x55, 0x4c, 0x44} // 88 ż
,{0x10, 0x08, 0x08, 0x10, 0x08} // 89 ←
};




void LcdCharacter(char character)
{
  character -= ' ';
  LcdWrite(LCD_D, 0x00);
  for (int index = 0; index < 5; index++)
    LcdWrite(LCD_D, ASCII[character][index]);
  LcdWrite(LCD_D, 0x00);
}
void LcdNum(byte num)
{
  LcdCharacter('0' + (num>>4));
  LcdCharacter('0' + (num&0xf));
}

void LcdClear(void)
{
  for (int index = 0; index < LCD_X * LCD_Y / 8; index++)
    LcdWrite(LCD_D, 0x00);
}

void LcdInitialise(void)
{
  pinMode(PIN_SCE,   OUTPUT);
  pinMode(PIN_RESET, OUTPUT);
  pinMode(PIN_DC,    OUTPUT);
  pinMode(PIN_SDIN,  OUTPUT);
  pinMode(PIN_SCLK,  OUTPUT);

  digitalWrite(PIN_RESET, LOW);
 // delay(1);
  digitalWrite(PIN_RESET, HIGH);

  LcdWrite( LCD_CMD, 0x21 );  // LCD Extended Commands.
  LcdWrite( LCD_CMD, 0xBf );  // Set LCD Vop (Contrast). //B1
  LcdWrite( LCD_CMD, 0x04 );  // Set Temp coefficent. //0x04
  LcdWrite( LCD_CMD, 0x14 );  // LCD bias mode 1:48. //0x13
  LcdWrite( LCD_CMD, 0x0C );  // LCD in normal mode. 0x0d for inverse
  LcdWrite(LCD_C, 0x20);
  LcdWrite(LCD_C, 0x0C);
}

void LcdString(const char *characters)
{
  while (*characters)
    LcdCharacter(*characters++);
}

void LcdWrite(const byte dc, const byte data)
{
  digitalWrite(PIN_DC, dc);
  digitalWrite(PIN_SCE, LOW);
  shiftOut(PIN_SDIN, PIN_SCLK, MSBFIRST, data);
  digitalWrite(PIN_SCE, HIGH);
}

// gotoXY routine to position cursor
// x - range: 0 to 84
// y - range: 0 to 5

void gotoXY(const int x, const int y)
{
  LcdWrite( 0, 0x80 | x);  // Column.
  LcdWrite( 0, 0x40 | y);  // Row.

}



void drawLine(void)
{
  unsigned char  j;
   for(j=0; j<84; j++) // top
  {
          gotoXY (j,0);
    LcdWrite (1,0x01);
  }
  for(j=0; j<84; j++) //Bottom
  {
          gotoXY (j,5);
    LcdWrite (1,0x80);
  }

  for(j=0; j<6; j++) // Right
  {
          gotoXY (83,j);
    LcdWrite (1,0xff);
  }
  for(j=0; j<6; j++) // Left
  {
          gotoXY (0,j);
    LcdWrite (1,0xff);
  }

}


void setup(void)
{

  LcdInitialise();
  LcdClear();

  Wire.begin();
  Serial.begin(9600);
  // set the initial time here:
  // DS3231 seconds, minutes, hours, day, date, month, year
  // setDS3231time(0,58,20,2,27,6,16);
}

void loop(void)
{
  // Display some simple character animation
  //
  int a,b;
  char Str[15];
  // Draw a Box
  for(b=1000; b>0; b--){
    // drawLine();
    gotoXY(0,0);
    LcdString("zb@wch:~$ _");
    gotoXY(10,4);
    // Put text in Box
    displayTime(); // display the real-time clock data on the screen
    gotoXY(0,5);
    LcdString("\200\201\202\203\204\205\206\207\210");

    delay(500);
  }
}

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 = Wire.read() & 0x7f;
  *minute = Wire.read();
  *hour = Wire.read() & 0x3f;
  *dayOfWeek = Wire.read();
  *dayOfMonth = Wire.read();
  *month = Wire.read();
  *year = Wire.read();
}

const char* tydzien[] = {
  "niedziela",
  "poniedzia\203ek",
  "wtorek",
  "\206roda",
  "czwartek",
  "pi\200tek",
  "sobota"
};

void displayTime()
{
  byte second, minute, hour, dayOfWeek, dayOfMonth, month, year;
  // retrieve data from DS3231
  readDS3231time(&second, &minute, &hour, &dayOfWeek, &dayOfMonth, &month,
  &year);

  // send it to the screen
  // convert the byte variable to a decimal number when displayed
  LcdNum(hour);
  LcdCharacter(':');
  LcdNum(minute);
  LcdCharacter(':');
  LcdNum(second);
  gotoXY(1,2);
  LcdNum(dayOfMonth);
  LcdCharacter('/');
  LcdNum(month);
  LcdString("/20");
  LcdNum(year);
  gotoXY(0,3);
  LcdString(tydzien[dayOfWeek-1]);
}