// from " POV clock web H ver0.0"
 // works GREAT
 // POV  TIME clock, WHITE display, U2
 //https://create.arduino.cc/projecthub/ProMaker_101/pov-clock-display-making-406912
 // CCW rotation
// #include <Time.h>
#include <TimeLib.h>
  const int LEDpins[] = {9,8,7,6,5,4,3,2};
  int rows= 8;      
   const int charHeight = 8;
   const int charWidth = 5;
   const unsigned char font[][6] = {
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 0
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 1
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 2
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 3
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 4
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 5
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 6
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 7
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 8
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 9
          {0x7f,0x3e,0x1c,0x08,0x08,0x0f},   //   0x20 10 // LF/NL
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 11
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 12 
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 13
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 14
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 15
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 16
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 17
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 18
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 19
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 20
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 21
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 22
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 23
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 24
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 25
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 26
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 27
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 28
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 29
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 30
          {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 31

      
         {0x00,0x00,0x00,0x00,0x00,0x00},   //   0x20 32
         {0x00,0x00,0x6f,0x00,0x00,0x00},   // ! 0x21 33
         {0x00,0x07,0x00,0x07,0x00,0x00},   // " 0x22 34
         {0x14,0x7f,0x14,0x7f,0x14,0x00},   // # 0x23 35
         {0x00,0x07,0x04,0x1e,0x00,0x00},   // $ 0x24 36
         {0x23,0x13,0x08,0x64,0x62,0x00},   // % 0x25 37
         {0x36,0x49,0x56,0x20,0x50,0x00},   // & 0x26 38
         {0x00,0x00,0x07,0x00,0x00,0x00},   // ' 0x27 39
         {0x00,0x1c,0x22,0x41,0x00,0x00},   // ( 0x28 40
         {0x00,0x41,0x22,0x1c,0x00,0x00},   // ) 0x29 41
         {0x14,0x08,0x3e,0x08,0x14,0x00},   // * 0x2a 42
         {0x08,0x08,0x3e,0x08,0x08,0x00},   // + 0x2b 43
         {0x00,0x50,0x30,0x00,0x00,0x00},   // , 0x2c 44
         {0x08,0x08,0x08,0x08,0x08,0x00},   // - 0x2d 45
         {0x00,0x60,0x60,0x00,0x00,0x00},   // . 0x2e 46
         {0x20,0x10,0x08,0x04,0x02,0x00},   // / 0x2f 47
         {0x3e,0x51,0x49,0x45,0x3e,0x00},   // 0 0x30 48
         {0x00,0x42,0x7f,0x40,0x00,0x00},   // 1 0x31 49
         {0x42,0x61,0x51,0x49,0x46,0x00},   // 2 0x32 50
         {0x21,0x41,0x45,0x4b,0x31,0x00},   // 3 0x33 51
         {0x18,0x14,0x12,0x7f,0x10,0x00},   // 4 0x34 52
         {0x27,0x45,0x45,0x45,0x39,0x00},   // 5 0x35 53
         {0x3c,0x4a,0x49,0x49,0x30,0x00},   // 6 0x36 54
         {0x01,0x71,0x09,0x05,0x03,0x00},   // 7 0x37 55
         {0x36,0x49,0x49,0x49,0x36,0x00},   // 8 0x38 56
         {0x06,0x49,0x49,0x29,0x1e,0x00},   // 9 0x39 57
         {0x00,0x36,0x36,0x00,0x00,0x00},   // : 0x3a 58
         {0x00,0x56,0x36,0x00,0x00,0x00},   // ; 0x3b 59
         {0x08,0x14,0x22,0x41,0x00,0x00},   // < 0x3c 60
         {0x14,0x14,0x14,0x14,0x14,0x00},   // = 0x3d 61
         {0x00,0x41,0x22,0x14,0x08,0x00},   // > 0x3e 62
         {0x02,0x01,0x51,0x09,0x06,0x00},   // ? 0x3f 63
         {0x3e,0x41,0x5d,0x49,0x4e,0x00},   // @ 0x40 64
         {0x7e,0x09,0x09,0x09,0x7e,0x00},   // A 0x41 65
         {0x7f,0x49,0x49,0x49,0x36,0x00},   // B 0x42 66
         {0x3e,0x41,0x41,0x41,0x22,0x00},   // C 0x43 67
         {0x7f,0x41,0x41,0x41,0x3e,0x00},   // D 0x44 68
         {0x7f,0x49,0x49,0x49,0x41,0x00},   // E 0x45 69
         {0x7f,0x09,0x09,0x09,0x01,0x00},   // F 0x46 70
         {0x3e,0x41,0x49,0x49,0x7a,0x00},   // G 0x47 71
         {0x7f,0x08,0x08,0x08,0x7f,0x00},   // H 0x48 72
         {0x00,0x41,0x7f,0x41,0x00,0x00},   // I 0x49 73
         {0x20,0x40,0x41,0x3f,0x01,0x00},   // J 0x4a 74
         {0x7f,0x08,0x14,0x22,0x41,0x00},   // K 0x4b 75
         {0x7f,0x40,0x40,0x40,0x40,0x00},   // L 0x4c 76
         {0x7f,0x02,0x0c,0x02,0x7f,0x00},   // M 0x4d 77
         {0x7f,0x04,0x08,0x10,0x7f,0x00},   // N 0x4e 78
         {0x3e,0x41,0x41,0x41,0x3e,0x00},   // O 0x4f 79
         {0x7f,0x09,0x09,0x09,0x06,0x00},   // P 0x50 80
         {0x3e,0x41,0x51,0x21,0x5e,0x00},   // Q 0x51 81
         {0x7f,0x09,0x19,0x29,0x46,0x00},   // R 0x52 82
         {0x46,0x49,0x49,0x49,0x31,0x00},   // S 0x53 83
         {0x01,0x01,0x7f,0x01,0x01,0x00},   // T 0x54 84
         {0x3f,0x40,0x40,0x40,0x3f,0x00},   // U 0x55 85
         {0x0f,0x30,0x40,0x30,0x0f,0x00},   // V 0x56 86
         {0x3f,0x40,0x30,0x40,0x3f,0x00},   // W 0x57 87
         {0x63,0x14,0x08,0x14,0x63,0x00},   // X 0x58 88
         {0x07,0x08,0x70,0x08,0x07,0x00},   // Y 0x59 89
         {0x61,0x51,0x49,0x45,0x43,0x00},   // Z 0x5a 90
         {0x3c,0x4a,0x49,0x29,0x1e,0x00},   // [ 0x5b 91
         {0x02,0x04,0x08,0x10,0x20,0x00},   // \ 0x5c 92
         {0x00,0x41,0x7f,0x00,0x00,0x00},   // ] 0x5d 93
         {0x04,0x02,0x01,0x02,0x04,0x00},   // ^ 0x5e 94
         {0x40,0x40,0x40,0x40,0x40,0x00},   // _ 0x5f 95
         {0x00,0x00,0x03,0x04,0x00,0x00},   // ` 0x60 96
         {0x20,0x54,0x54,0x54,0x78,0x00},   // a 0x61 97
         {0x7f,0x48,0x44,0x44,0x38,0x00},   // b 0x62 98
         {0x38,0x44,0x44,0x44,0x20,0x00},   // c 0x63 99
         {0x38,0x44,0x44,0x48,0x7f,0x00},   // d 0x64 100
         {0x38,0x54,0x54,0x54,0x18,0x00},   // e 0x65 101
         {0x08,0x7e,0x09,0x01,0x02,0x00},   // f 0x66 102
         {0x0c,0x52,0x52,0x52,0x3e,0x00},   // g 0x67 103
         {0x7f,0x08,0x04,0x04,0x78,0x00},   // h 0x68 104
         {0x00,0x44,0x7d,0x40,0x00,0x00},   // i 0x69 105
         {0x20,0x40,0x44,0x3d,0x00,0x00},   // j 0x6a 106
         {0x00,0x7f,0x10,0x28,0x44,0x00},   // k 0x6b 107
         {0x00,0x41,0x7f,0x40,0x00,0x00},   // l 0x6c 108
         {0x7c,0x04,0x18,0x04,0x78,0x00},   // m 0x6d 109
         {0x7c,0x08,0x04,0x04,0x78,0x00},   // n 0x6e 110
         {0x38,0x44,0x44,0x44,0x38,0x00},   // o 0x6f 111
         {0x7c,0x14,0x14,0x14,0x08,0x00},   // p 0x70 112
         {0x08,0x14,0x14,0x18,0x7c,0x00},   // q 0x71 113
         {0x7c,0x08,0x04,0x04,0x08,0x00},   // r 0x72 114
         {0x48,0x54,0x54,0x54,0x20,0x00},   // s 0x73 115
         {0x04,0x3f,0x44,0x40,0x20,0x00},   // t 0x74 116
         {0x3c,0x40,0x40,0x20,0x7c,0x00},   // u 0x75 117
         {0x1c,0x20,0x40,0x20,0x1c,0x00},   // v 0x76 118
         {0x3c,0x40,0x30,0x40,0x3c,0x00},   // w 0x77 119
         {0x44,0x28,0x10,0x28,0x44,0x00},   // x 0x78 120
         {0x0c,0x50,0x50,0x50,0x3c,0x00},   // y 0x79 121
         {0x44,0x64,0x54,0x4c,0x44,0x00},   // z 0x7a 122
         {0x00,0x08,0x36,0x41,0x41,0x00},   // { 0x7b 123
         {0x00,0x00,0x7f,0x00,0x00,0x00},   // | 0x7c 124
         {0x41,0x41,0x36,0x08,0x00,0x00},   // } 0x7d 125
         {0x04,0x02,0x04,0x08,0x04,0x00},   // ~ 0x7e 126
     };
 

  const int sensorPIN = 10;
  int sensVal;
  int i;
  char textString[] = "        ";
  String tmp_str;
  
  void setup()
  {
    //      hh:mm:ss, D,M,Year
    setTime(12,27,30,13,8,2023);
    pinMode(12, OUTPUT);
    pinMode(13, OUTPUT);
    pinMode(11, OUTPUT);
    pinMode(10, INPUT_PULLUP);
    for (i = 0; i < rows; i++)
    pinMode(LEDpins[i], OUTPUT);    
     }
  
  void loop()
  {
    tmp_str=clock();
    while(digitalRead(sensorPIN) != 1)// home sw
    {
       }
      for (int k=0; k<tmp_str.length(); k++){
      printInvertedLetter(tmp_str.charAt(k));// "charAt" puts single char at position (K)
      }
    }
 // **************************************************************************
 // below print to display U2 (white)
 
  void printInvertedLetter(char ch)
  {
    for (int i=0; i<6; i++) {// width = 6
      byte b = font[ch][i];
      for (int j=0; j<8; j++) {// height = 8
        digitalWrite(LEDpins[j], bitRead(b, 7-j));
        }
          }
    for (i = 0; i < 8; i++)// rows = 8
      digitalWrite(LEDpins[i] , LOW);
   }
// **************************************************************************
// below is CLOCK routine

    String clock(){
    String result;
    String str1;
    String str2;
    String str3;
    if (hour() < 10)
      str1 = "0"+String(hour());
    else
      str1 = String(hour());
    if (minute() < 10)
      str2 = "0"+String(minute());
    else
      str2 = String(minute());
    if (second() < 10)
      str3 = "0"+String(second());
    else
      str3 = String(second());


      
    result = str1+":"+str2+":"+str3;
    return result;
  }
/*
  hour();            // the hour now  (0-23)
  minute();          // the minute now (0-59)
  second();          // the second now (0-59)
  day();             // the day now (1-31)
  weekday();         // day of the week (1-7), Sunday is day 1
  month();           // the month now (1-12)
  year();   

*/