Arduino Seven-Segment Counter

A four-digit seven-segment counter with three options.

Jul 4, 2019

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9 respects

tracking

clocks

kids

Components and supplies

Arduino UNO

Linear Regulator (7805)

SparkFun 7-Segment Serial Display - Red

Capacitor 10 µF

Resistor 100 ohm

5 mm LED: Red

Capacitor 22 pF

16 MHz Crystal

Tools and machines

Solder Wire, Lead Free

Soldering iron (generic)

Project description

Code

arduino

You can copy and paste this code in the arduino software and upload the code.

1/*
2
3/** This code is edited by www.easymades.com **/
4
5
6int  Ntime = 0;
7int Otime = 0;
8float X = 0;
9int time = 4;
10
11int pinA =  2;
12int pinB = 3;
13int pinC = 4;
14int pinD = 5;
15int pinE = 6;
16int pinF  = 7;
17int pinG = 8;
18int pinDP = 1;
19
20int DIG1 = 12;
21int DIG2 = 11;
22int  DIG3 = 10;
23int DIG4 = 9;
24
25void choose_digit(char num) {
26  switch (num)  {
27  default: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, HIGH); digitalWrite(pinDP, HIGH); break; case 1: digitalWrite(pinA,  HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,  HIGH); break; case 2: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  HIGH); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, HIGH);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 3: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break; case 4: digitalWrite(pinA, HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, HIGH); digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 5: digitalWrite(pinA,  LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break; case 6: digitalWrite(pinA, LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 7: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,  HIGH); break; case 8: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 9: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break;
28
29      ;
30  }
31}
32
33void pick_digit(int digit) {
34  digitalWrite(DIG1, LOW);
35  digitalWrite(DIG2, LOW);
36  digitalWrite(DIG3,  LOW);
37  digitalWrite(DIG4, LOW); switch (digit) {
38  case 1: digitalWrite(DIG1,  HIGH); break; case 2: digitalWrite(DIG2, HIGH); break; case 3: digitalWrite(DIG3,  HIGH); break; default: digitalWrite(DIG4, HIGH); break;
39  }
40
41}
42
43void  decimal_place() {
44  digitalWrite(pinDP, LOW);
45}
46
47void seven_segment(int  number) {
48  unsigned char thousands = int (number / 1000);
49  unsigned char  hundreds = int ((number / 100) % 10);
50  unsigned char tens = int ((number / 10)  % 10);
51  unsigned char ones = int (number % 10); //1234
52  if (thousands >  0) {
53    choose_digit(thousands);
54    pick_digit(1);
55  }
56
57  if ((hundreds  > 0) | (thousands > 0)) {
58    delay(time); choose_digit(hundreds);
59    pick_digit(2);
60  }
61
62  if ((tens > 0) || (hundreds > 0) | (thousands > 0)) {
63    //decimal_place();
64    delay(time); choose_digit(tens);
65    pick_digit(3);
66  }
67
68
69  //  add decimal point
70  delay(time); choose_digit(ones);
71  pick_digit(4);
72
73  delay(time);
74
75}
76
77void setup() {
78  pinMode(DIG1, OUTPUT);
79  pinMode(DIG2,  OUTPUT);
80  pinMode(DIG3, OUTPUT);
81  pinMode(DIG4, OUTPUT); 
82  pinMode(pinA,  OUTPUT);
83  pinMode(pinB, OUTPUT);
84  pinMode(pinC, OUTPUT);
85  pinMode(pinD,  OUTPUT);
86  pinMode(pinE, OUTPUT);
87  pinMode(pinF, OUTPUT);
88  pinMode(pinG,  OUTPUT);
89  pinMode(pinDP, OUTPUT);
90
91}
92
93void loop() {
94float sensor_value  = map(analogRead(A0),0,1023,0,3000); // for Flood level Sensor this Eg:3000 is the  maximum level
95
96
97
98
99// Continue counter and Visitors counter
100/**  
101  Ntime = millis();
102  if (analogRead(A0) > 0) {
103
104    if ((Ntime - Otime)  > 200) {
105      X = X + 1;
106      Otime = Ntime; // Active this to visitors  counter
107      {
108        if (X == 9999) {
109          X = 0;
110        }
111      }
112    }
113    //Otime = Ntime; // Active this to continue counter
114
115  }
116
117  float sensor_value = X; */
118
119
120
121  
122  seven_segment(sensor_value);
123
124}

/*

/** This code is edited by www.easymades.com **/


int  Ntime = 0;
int Otime = 0;
float X = 0;
int time = 4;

int pinA =  2;
int pinB = 3;
int pinC = 4;
int pinD = 5;
int pinE = 6;
int pinF  = 7;
int pinG = 8;
int pinDP = 1;

int DIG1 = 12;
int DIG2 = 11;
int  DIG3 = 10;
int DIG4 = 9;

void choose_digit(char num) {
  switch (num)  {
  default: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, HIGH); digitalWrite(pinDP, HIGH); break; case 1: digitalWrite(pinA,  HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,  HIGH); break; case 2: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  HIGH); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, HIGH);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 3: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break; case 4: digitalWrite(pinA, HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, HIGH); digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 5: digitalWrite(pinA,  LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break; case 6: digitalWrite(pinA, LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 7: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);  digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,  HIGH); break; case 8: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,  LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);  digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 9: digitalWrite(pinA,  LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);  digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,  HIGH); break;

      ;
  }
}

void pick_digit(int digit) {
  digitalWrite(DIG1, LOW);
  digitalWrite(DIG2, LOW);
  digitalWrite(DIG3,  LOW);
  digitalWrite(DIG4, LOW); switch (digit) {
  case 1: digitalWrite(DIG1,  HIGH); break; case 2: digitalWrite(DIG2, HIGH); break; case 3: digitalWrite(DIG3,  HIGH); break; default: digitalWrite(DIG4, HIGH); break;
  }

}

void  decimal_place() {
  digitalWrite(pinDP, LOW);
}

void seven_segment(int  number) {
  unsigned char thousands = int (number / 1000);
  unsigned char  hundreds = int ((number / 100) % 10);
  unsigned char tens = int ((number / 10)  % 10);
  unsigned char ones = int (number % 10); //1234
  if (thousands >  0) {
    choose_digit(thousands);
    pick_digit(1);
  }

  if ((hundreds  > 0) | (thousands > 0)) {
    delay(time); choose_digit(hundreds);
    pick_digit(2);
  }

  if ((tens > 0) || (hundreds > 0) | (thousands > 0)) {
    //decimal_place();
    delay(time); choose_digit(tens);
    pick_digit(3);
  }


  //  add decimal point
  delay(time); choose_digit(ones);
  pick_digit(4);

  delay(time);

}

void setup() {
  pinMode(DIG1, OUTPUT);
  pinMode(DIG2,  OUTPUT);
  pinMode(DIG3, OUTPUT);
  pinMode(DIG4, OUTPUT); 
  pinMode(pinA,  OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinC, OUTPUT);
  pinMode(pinD,  OUTPUT);
  pinMode(pinE, OUTPUT);
  pinMode(pinF, OUTPUT);
  pinMode(pinG,  OUTPUT);
  pinMode(pinDP, OUTPUT);

}

void loop() {
float sensor_value  = map(analogRead(A0),0,1023,0,3000); // for Flood level Sensor this Eg:3000 is the  maximum level




// Continue counter and Visitors counter
/**  
  Ntime = millis();
  if (analogRead(A0) > 0) {

    if ((Ntime - Otime)  > 200) {
      X = X + 1;
      Otime = Ntime; // Active this to visitors  counter
      {
        if (X == 9999) {
          X = 0;
        }
      }
    }
    //Otime = Ntime; // Active this to continue counter

  }

  float sensor_value = X; */



  
  seven_segment(sensor_value);

}

Code

arduino

You can copy and paste this code in the arduino software and upload the code.

1/*
2
3/** This code is edited by www.easymades.com **/
4
5
6int   Ntime = 0;
7int Otime = 0;
8float X = 0;
9int time = 4;
10
11int pinA =   2;
12int pinB = 3;
13int pinC = 4;
14int pinD = 5;
15int pinE = 6;
16int pinF   = 7;
17int pinG = 8;
18int pinDP = 1;
19
20int DIG1 = 12;
21int DIG2 = 11;
22int   DIG3 = 10;
23int DIG4 = 9;
24
25void choose_digit(char num) {
26  switch (num)   {
27  default: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, HIGH); digitalWrite(pinDP, HIGH); break; case 1: digitalWrite(pinA,   HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,   HIGH); break; case 2: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   HIGH); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, HIGH);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 3: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break; case 4: digitalWrite(pinA, HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, HIGH); digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 5: digitalWrite(pinA,   LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break; case 6: digitalWrite(pinA, LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 7: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,   HIGH); break; case 8: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 9: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break;
28
29      ;
30  }
31}
32
33void pick_digit(int digit) {
34   digitalWrite(DIG1, LOW);
35  digitalWrite(DIG2, LOW);
36  digitalWrite(DIG3,   LOW);
37  digitalWrite(DIG4, LOW); switch (digit) {
38  case 1: digitalWrite(DIG1,   HIGH); break; case 2: digitalWrite(DIG2, HIGH); break; case 3: digitalWrite(DIG3,   HIGH); break; default: digitalWrite(DIG4, HIGH); break;
39  }
40
41}
42
43void   decimal_place() {
44  digitalWrite(pinDP, LOW);
45}
46
47void seven_segment(int   number) {
48  unsigned char thousands = int (number / 1000);
49  unsigned char   hundreds = int ((number / 100) % 10);
50  unsigned char tens = int ((number / 10)   % 10);
51  unsigned char ones = int (number % 10); //1234
52  if (thousands >   0) {
53    choose_digit(thousands);
54    pick_digit(1);
55  }
56
57  if ((hundreds   > 0) | (thousands > 0)) {
58    delay(time); choose_digit(hundreds);
59    pick_digit(2);
60   }
61
62  if ((tens > 0) || (hundreds > 0) | (thousands > 0)) {
63    //decimal_place();
64     delay(time); choose_digit(tens);
65    pick_digit(3);
66  }
67
68
69  //   add decimal point
70  delay(time); choose_digit(ones);
71  pick_digit(4);
72
73   delay(time);
74
75}
76
77void setup() {
78  pinMode(DIG1, OUTPUT);
79  pinMode(DIG2,   OUTPUT);
80  pinMode(DIG3, OUTPUT);
81  pinMode(DIG4, OUTPUT); 
82  pinMode(pinA,   OUTPUT);
83  pinMode(pinB, OUTPUT);
84  pinMode(pinC, OUTPUT);
85  pinMode(pinD,   OUTPUT);
86  pinMode(pinE, OUTPUT);
87  pinMode(pinF, OUTPUT);
88  pinMode(pinG,   OUTPUT);
89  pinMode(pinDP, OUTPUT);
90
91}
92
93void loop() {
94float sensor_value   = map(analogRead(A0),0,1023,0,3000); // for Flood level Sensor this Eg:3000 is the   maximum level
95
96
97
98
99// Continue counter and Visitors counter
100/**   
101  Ntime = millis();
102  if (analogRead(A0) > 0) {
103
104    if ((Ntime - Otime)   > 200) {
105      X = X + 1;
106      Otime = Ntime; // Active this to visitors   counter
107      {
108        if (X == 9999) {
109          X = 0;
110        }
111       }
112    }
113    //Otime = Ntime; // Active this to continue counter
114
115   }
116
117  float sensor_value = X; */
118
119
120
121  
122  seven_segment(sensor_value);
123
124}

/*

/** This code is edited by www.easymades.com **/


int   Ntime = 0;
int Otime = 0;
float X = 0;
int time = 4;

int pinA =   2;
int pinB = 3;
int pinC = 4;
int pinD = 5;
int pinE = 6;
int pinF   = 7;
int pinG = 8;
int pinDP = 1;

int DIG1 = 12;
int DIG2 = 11;
int   DIG3 = 10;
int DIG4 = 9;

void choose_digit(char num) {
  switch (num)   {
  default: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, HIGH); digitalWrite(pinDP, HIGH); break; case 1: digitalWrite(pinA,   HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,   HIGH); break; case 2: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   HIGH); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, HIGH);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 3: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break; case 4: digitalWrite(pinA, HIGH); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, HIGH); digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 5: digitalWrite(pinA,   LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break; case 6: digitalWrite(pinA, LOW); digitalWrite(pinB, HIGH); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 7: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, HIGH);   digitalWrite(pinE, HIGH); digitalWrite(pinF, HIGH); digitalWrite(pinG, HIGH); digitalWrite(pinDP,   HIGH); break; case 8: digitalWrite(pinA, LOW); digitalWrite(pinB, LOW); digitalWrite(pinC,   LOW); digitalWrite(pinD, LOW); digitalWrite(pinE, LOW); digitalWrite(pinF, LOW);   digitalWrite(pinG, LOW); digitalWrite(pinDP, HIGH); break; case 9: digitalWrite(pinA,   LOW); digitalWrite(pinB, LOW); digitalWrite(pinC, LOW); digitalWrite(pinD, LOW);   digitalWrite(pinE, HIGH); digitalWrite(pinF, LOW); digitalWrite(pinG, LOW); digitalWrite(pinDP,   HIGH); break;

      ;
  }
}

void pick_digit(int digit) {
   digitalWrite(DIG1, LOW);
  digitalWrite(DIG2, LOW);
  digitalWrite(DIG3,   LOW);
  digitalWrite(DIG4, LOW); switch (digit) {
  case 1: digitalWrite(DIG1,   HIGH); break; case 2: digitalWrite(DIG2, HIGH); break; case 3: digitalWrite(DIG3,   HIGH); break; default: digitalWrite(DIG4, HIGH); break;
  }

}

void   decimal_place() {
  digitalWrite(pinDP, LOW);
}

void seven_segment(int   number) {
  unsigned char thousands = int (number / 1000);
  unsigned char   hundreds = int ((number / 100) % 10);
  unsigned char tens = int ((number / 10)   % 10);
  unsigned char ones = int (number % 10); //1234
  if (thousands >   0) {
    choose_digit(thousands);
    pick_digit(1);
  }

  if ((hundreds   > 0) | (thousands > 0)) {
    delay(time); choose_digit(hundreds);
    pick_digit(2);
   }

  if ((tens > 0) || (hundreds > 0) | (thousands > 0)) {
    //decimal_place();
     delay(time); choose_digit(tens);
    pick_digit(3);
  }


  //   add decimal point
  delay(time); choose_digit(ones);
  pick_digit(4);

   delay(time);

}

void setup() {
  pinMode(DIG1, OUTPUT);
  pinMode(DIG2,   OUTPUT);
  pinMode(DIG3, OUTPUT);
  pinMode(DIG4, OUTPUT); 
  pinMode(pinA,   OUTPUT);
  pinMode(pinB, OUTPUT);
  pinMode(pinC, OUTPUT);
  pinMode(pinD,   OUTPUT);
  pinMode(pinE, OUTPUT);
  pinMode(pinF, OUTPUT);
  pinMode(pinG,   OUTPUT);
  pinMode(pinDP, OUTPUT);

}

void loop() {
float sensor_value   = map(analogRead(A0),0,1023,0,3000); // for Flood level Sensor this Eg:3000 is the   maximum level




// Continue counter and Visitors counter
/**   
  Ntime = millis();
  if (analogRead(A0) > 0) {

    if ((Ntime - Otime)   > 200) {
      X = X + 1;
      Otime = Ntime; // Active this to visitors   counter
      {
        if (X == 9999) {
          X = 0;
        }
       }
    }
    //Otime = Ntime; // Active this to continue counter

   }

  float sensor_value = X; */



  
  seven_segment(sensor_value);

}

Downloadable files

Counter Circuit Diagram

This is directly connected to the Arduino board, but if you want, you can make the project on a vero board.

Counter Circuit Diagram

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