3 Develop an interfacing circuit and a sketch to display decimal data on 7-Segments. The 3- digit number is sent over serial communication.

 Here i am using online IDE Tinkercad . If you don't know what is tinkercad then refer my blog HERE or else you can use offline IDE also.

Code:-

unsigned const int A = 13;

unsigned const int B = 12;

unsigned const int C = 11;

unsigned const int D = 10;

unsigned const int E = 9;

unsigned const int F = 8;

unsigned const int G = 7;

unsigned const int H = 6;

 

 

void setup(void)

{

  pinMode(A, OUTPUT);

  pinMode(B, OUTPUT);

  pinMode(C, OUTPUT);

  pinMode(D, OUTPUT);

  pinMode(E, OUTPUT);

  pinMode(F, OUTPUT);

  pinMode(G, OUTPUT);

  pinMode(H, OUTPUT);

}

 

//My Functions

 

void zero(void) {

  digitalWrite(A, LOW);

  digitalWrite(B, HIGH);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, HIGH);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void one(void) {

  digitalWrite(A, LOW);

  digitalWrite(B, LOW);

  digitalWrite(C, LOW);

  digitalWrite(D, HIGH);

  digitalWrite(E, LOW);

  digitalWrite(F, LOW);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void two(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, LOW);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, HIGH);

  digitalWrite(F, HIGH);

  digitalWrite(G, LOW);

  digitalWrite(H, LOW);

}

 

void three(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, LOW);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, LOW);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void four(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, HIGH);

  digitalWrite(C, LOW);

  digitalWrite(D, HIGH);

  digitalWrite(E, LOW);

  digitalWrite(F, LOW);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void five(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, HIGH);

  digitalWrite(C, HIGH);

  digitalWrite(D, LOW);

  digitalWrite(E, LOW);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void six(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, HIGH);

  digitalWrite(C, HIGH);

  digitalWrite(D, LOW);

  digitalWrite(E, HIGH);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void seven(void) {

  digitalWrite(A, LOW);

  digitalWrite(B, LOW);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, LOW);

  digitalWrite(F, LOW);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void eight(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, HIGH);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, HIGH);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

void nine(void) {

  digitalWrite(A, HIGH);

  digitalWrite(B, HIGH);

  digitalWrite(C, HIGH);

  digitalWrite(D, HIGH);

  digitalWrite(E, LOW);

  digitalWrite(F, HIGH);

  digitalWrite(G, HIGH);

  digitalWrite(H, LOW);

}

 

// Start

void loop(void)

{

  zero();

  delay(1000);

 

  one();

  delay(1000);

 

  two();

  delay(1000);

 

  three();

  delay(1000);

 

  four();

  delay(1000);

 

  five();

  delay(1000);

 

  six();

  delay(1000);

 

  seven();

  delay(1000);

 

  eight();

  delay(1000);

 

  nine();

  delay(1000);

}

 Output:-



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