Pro Maker_101
Published © LGPL

POV Clock/Display Making

This Project we are going how to make a cool POV clock in a simple way.

IntermediateFull instructions provided6,487
POV Clock/Display Making

Things used in this project

Hardware components

PCBWay Custom PCB
PCBWay Custom PCB
×1
Arduino Nano R3
Arduino Nano R3
×1
9V battery (generic)
9V battery (generic)
×1
Linear Regulator (7805)
Linear Regulator (7805)
×1
LED (generic)
LED (generic)
×1
Resistor 220 ohm
Resistor 220 ohm
×1
Slide Switch
Slide Switch
×1
DC motor (generic)
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)
Soldering iron (generic)

Story

Read more

Schematics

pvcircuit__propeller_BJILohAPNC.jpg

Code

Code For POV Clock

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

  const int sensorPIN = 10;
  int sensVal;
  int i;
  char textString[] = "        ";
  String tmp_str;
  
  void setup()
  {
    setTime(12,27,30,16,10,2016);
    pinMode(12, OUTPUT);
    pinMode(13, OUTPUT);
    pinMode(11, OUTPUT);
    pinMode(10, INPUT);
    for (i = 0; i < rows; i++)
      pinMode(LEDpins[i], OUTPUT);    
   
  }
  
  void loop()
  {
      
    
    tmp_str=klok();
    tmp_str=tmp_str+" ";
    while(digitalRead(sensorPIN) != 0)
    {
     digitalWrite(13, LOW); 
    }
    digitalWrite(13, HIGH);   
    for (int k=0; k<tmp_str.length(); k++){
      printLetter(tmp_str.charAt(k));
      }
    delay(1);  
    for (int k=sizeof(textString)-1; k>-1; k--){
      printLetterboven(textString[k]);
      }  
  }
  
  String klok(){
    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;
  }
  
void printLetterboven(char ch)
  {
    
    if (ch < 32 || ch > 126){
      ch = 32;
      }
    ch -= 32;
    for (int i=charWidth-1; i>-1; i--) {
      byte b = font[ch][i];
      for (int j=0; j<charHeight; j++) {
        digitalWrite(LEDpins[j], bitRead(b,j));
        }
      delay(1);
      }
    for (i = 0; i < rows; i++)
      digitalWrite(LEDpins[i] , LOW);
    delay(1);
  
  }  
  
  void printLetter(char ch)
  {
    if (ch < 32 || ch > 126){
      ch = 32;
      }
    ch -= 32;
    for (int i=0; i<charWidth; i++) {
      byte b = font[ch][i];
      for (int j=0; j<charHeight; j++) {
        digitalWrite(LEDpins[j], bitRead(b, 7-j));
        }
      delay(1);
      }
    for (i = 0; i < rows; i++)
      digitalWrite(LEDpins[i] , LOW);
    delay(1);
  
  }

Credits

Pro Maker_101

Pro Maker_101

11 projects • 4 followers
Electrical,Electronics,DIY

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