Published May 8, 2021 © LGPL

7 Segment Clock Using Arduino

Hey guys iam back with a project which is the 7 segment clock using arduino, iam conveying my thoughts and all other things to make this

AdvancedFull instructions provided10,211

Things used in this project

Hardware components

Arduino Nano R3

5 mm LED: Red

116

Tactile Switch, Top Actuated

Male-Header 36 Position 1 Row- Long (0.1")

Female Header 8 Position 1 Row (0.1")

Dot Pcb

Hook Up Wire Kit, 22 AWG

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Solder Flux, Soldering

Solder Wire, Lead Free

PCB Holder, Soldering Iron

Story

hey guys here I would like to share my experiences on making this clock so you guys can also make it and can neglect the mistakes which I made while making this project. I hope you can also make this, as I do so for making this clock you need to have some soldering skill not like the pro one but a little kind of intermediatestate, I use dot-pcb for making this but you can also make it from foam board or any sort of base, and the hard part is aligning the leds and make the segments look good and promising so if you are not able to do it precisely you can make a jig or any other king of ideology like making a schematic where we need to place the leds and and sticking it to a hard surface to make this, I also made a small controller board for this project to set time. If you have read till now ur great really need an appreciation, like a sort of return it will be great if you can support me by subscribing to the channel and without further a due lets get into making. stay happy stay positive :)

Code

Arduino Code

//feel free to contact
//sreeramaj53@gmail.com
//www.youtube.com/ZenoModiff

#include <TimeLib.h>
int digit1 = 10;
int digit2 = 11; 
int digit3 = 12; 
int digit4 = 13; 

int segA = 8;//Display pin A
int segB = 7;//splay pin b
int segC = 6; //Display pin c
int segD = 5; //Display pin d
int segE = 4; //Display pin e
int segF = 3; //Display pin f
int segG = 2; //Display pin g
int segDP = 9;// Display pin dot

byte SW0 = A0;
byte SW1 = A1;
byte SW2 = A2;

void setup() {

  pinMode(segA, OUTPUT);
  pinMode(segB, OUTPUT);
  pinMode(segC, OUTPUT);
  pinMode(segD, OUTPUT);
  pinMode(segE, OUTPUT);
  pinMode(segF, OUTPUT);
  pinMode(segG, OUTPUT);
  pinMode(segDP, OUTPUT);

  pinMode(digit1, OUTPUT);
  pinMode(digit2, OUTPUT);
  pinMode(digit3, OUTPUT);
  pinMode(digit4, OUTPUT);

 Serial.begin(9600);

  pinMode(SW0, INPUT);  
  pinMode(SW1, INPUT);  
  pinMode(SW2, INPUT);  

  digitalWrite(SW0, HIGH); 
  digitalWrite(SW1, HIGH);
  digitalWrite(SW2, HIGH);
}

void loop() {
   digitalWrite(segDP, HIGH);
   int hr = hour();
  int timp = ( (hr>12)?(hr%12):hr)*100+minute();
  Serial.println(timp);
  
   for(int i = 250 ; i >0  ; i--) {
     if (timp > 100) displayNumber01(timp);
     else displayNumber02(timp);
   }

   for(int i = 250 ; i >0  ; i--) {
     if (timp > 100) displayNumber03(timp);
     else displayNumber04(timp);
   }

  if (!(digitalRead(SW0))) set_time();
}

void set_time()   {
  byte minutes1 = 0;
  byte hours1 = 0;
  byte minutes = minute();
  byte hours = hour();

  while (!digitalRead(SW0)) 
  {
    minutes1=minutes;
    hours1=hours;

  while (!digitalRead(SW1)) 
    {
     minutes++;

    if (minutes > 59) minutes = 0;
     for(int i = 20 ; i >0  ; i--) {
       int timp= hours*100+minutes;
     if (timp > 1000) displayNumber01(timp);
     else displayNumber02(timp);
     }

   delay(150);
    }

    while (!digitalRead(SW2))
    {
     hours++;

     if (hours > 12) hours = 0;

     for(int i = 20 ; i >0  ; i--) {
     int timp= hours*100+minutes;
     if (timp > 1000) displayNumber01(timp);
     else displayNumber02(timp);
     }

     delay(150);
    }

     for(int i = 20 ; i >0  ; i--) {
     displayNumber01(hours*100+minutes);
     }
     setTime(hours,minutes,0,0,0,0);
   delay(150);

  }

}

void displayNumber01(int toDisplay) {
#define DISPLAY_BRIGHTNESS  500

#define DIGIT_ON  HIGH
#define DIGIT_OFF  LOW

  for(int digit = 4 ; digit > 0 ; digit--) {

  
    switch(digit) {
    case 1:
     digitalWrite(digit1, DIGIT_ON);
     digitalWrite(segDP, LOW);
      break;
   case 2:
      digitalWrite(digit2, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    case 3:
      digitalWrite(digit3, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    case 4:
      digitalWrite(digit4, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

  
    lightNumber(10);

    
    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
}
}

void displayNumber02(int toDisplay) {
#define DISPLAY_BRIGHTNESS  500

#define DIGIT_ON  HIGH
#define DIGIT_OFF  LOW

  for(int digit = 4 ; digit > 0 ; digit--) {

   
    switch(digit) {
    case 1:
     lightNumber(10);
     digitalWrite(segDP, LOW);
     break;
   case 2:
      digitalWrite(digit2, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    case 3:
      digitalWrite(digit3, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    case 4:
      digitalWrite(digit4, DIGIT_ON);
      digitalWrite(segDP, LOW);
      break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

    
    lightNumber(10);

    
    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
}
}

void displayNumber03(int toDisplay) {
#define DISPLAY_BRIGHTNESS  500

#define DIGIT_ON  HIGH
#define DIGIT_OFF  LOW

  for(int digit = 4 ; digit > 0 ; digit--) {

    
    switch(digit) {
    case 1:
     digitalWrite(digit1, DIGIT_ON);
     digitalWrite(segDP, HIGH);
      break;
   case 2:
      digitalWrite(digit2, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    case 3:
      digitalWrite(digit3, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    case 4:
      digitalWrite(digit4, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

    
    lightNumber(10);

   
    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
}
}

void displayNumber04(int toDisplay) {
#define DISPLAY_BRIGHTNESS  500

#define DIGIT_ON  HIGH
#define DIGIT_OFF  LOW

  for(int digit = 4 ; digit > 0 ; digit--) {

    
    switch(digit) {
    case 1:
     lightNumber(10);
     digitalWrite(segDP, HIGH);
     break;
   case 2:
      digitalWrite(digit2, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    case 3:
      digitalWrite(digit3, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    case 4:
      digitalWrite(digit4, DIGIT_ON);
      digitalWrite(segDP, HIGH);
      break;
    }
    lightNumber(toDisplay % 10);
    toDisplay /= 10;
    delayMicroseconds(DISPLAY_BRIGHTNESS);

    lightNumber(10);

    digitalWrite(digit1, DIGIT_OFF);
    digitalWrite(digit2, DIGIT_OFF);
    digitalWrite(digit3, DIGIT_OFF);
    digitalWrite(digit4, DIGIT_OFF);
}
}

void lightNumber(int numberToDisplay) {

#define SEGMENT_ON  LOW
#define SEGMENT_OFF HIGH

  switch (numberToDisplay){

  case 0:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_ON);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_OFF);
    break;

  case 1:
    digitalWrite(segA, SEGMENT_OFF);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_OFF);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_OFF);
    digitalWrite(segG, SEGMENT_OFF);
    break;

  case 2:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_OFF);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_ON);
    digitalWrite(segF, SEGMENT_OFF);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 3:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_OFF);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 4:
    digitalWrite(segA, SEGMENT_OFF);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_OFF);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 5:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_OFF);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 6:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_OFF);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_ON);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 7:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_OFF);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_OFF);
    digitalWrite(segG, SEGMENT_OFF);
    break;

  case 8:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_ON);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_ON);
    break;

  case 9:
    digitalWrite(segA, SEGMENT_ON);
    digitalWrite(segB, SEGMENT_ON);
    digitalWrite(segC, SEGMENT_ON);
    digitalWrite(segD, SEGMENT_ON);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_ON);
    digitalWrite(segG, SEGMENT_ON);
    break;

  
  case 10:
    digitalWrite(segA, SEGMENT_OFF);
    digitalWrite(segB, SEGMENT_OFF);
    digitalWrite(segC, SEGMENT_OFF);
    digitalWrite(segD, SEGMENT_OFF);
    digitalWrite(segE, SEGMENT_OFF);
    digitalWrite(segF, SEGMENT_OFF);
    digitalWrite(segG, SEGMENT_OFF);
    break;

  }
}

Credits

noneedforit

13 projects • 9 followers

7 Segment Clock Using Arduino

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

Schematics

Code

Arduino Code

Credits

noneedforit

Comments

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7 Segment Clock Using Arduino

7 Segment Clock Using Arduino

Things used in this project

Hardware components

Software apps and online services

Hand tools and fabrication machines

Story

Schematics

Schematics

Code

Arduino Code

Credits

noneedforit

Comments

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