ESP32-SEVEN SEGMENT DISPLAYS

ESP32-SEVEN SEGMENT DISPLAYS

Aim:

Interfacing ESP32-Microcontroller with seven segment display, to display the numbers.

Hardware Required:

ESP32-Microcontroller development board

Connections:

Pin Mapping:

A	I04
B	I012
C	I033
D	I032
E	I025
F	I026
DP	I05
D1	GND

Program:

void setup()

{

  // define pin modes

pinMode(4,OUTPUT); //Set pin D2-D9 as input pins

pinMode(12,OUTPUT);

pinMode(33,OUTPUT);

pinMode(32,OUTPUT);

pinMode(25,OUTPUT);

pinMode(26,OUTPUT);

pinMode(27,OUTPUT);

pinMode(5,OUTPUT);

}

void loop() 

{

  // print 0

  {

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,LOW);

   digitalWrite(26,LOW);

   digitalWrite(27,HIGH);

   digitalWrite(5,LOW);

   delay(1000);

  }

 // print 1

  {

   digitalWrite(4,HIGH);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,HIGH);

   digitalWrite(25,HIGH);

   digitalWrite(26,HIGH);

   digitalWrite(27,HIGH);

   digitalWrite(5,LOW);

   delay(1000);

  }

 // print 2

{

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,HIGH);

   digitalWrite(32,LOW);

   digitalWrite(25,LOW);

   digitalWrite(26,HIGH);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW);

   delay(1000);

  }

  // print 3

  {

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,HIGH);

   digitalWrite(26,HIGH);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW); 

   delay(1000);

  }

  // print 4

  {

   digitalWrite(4,HIGH);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,HIGH);

   digitalWrite(25,HIGH);

   digitalWrite(26,LOW);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW);

   delay(1000);

  }

  // print 5

  {

   digitalWrite(4,LOW);

   digitalWrite(12,HIGH);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,HIGH);

   digitalWrite(26,LOW);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW);  

   delay(1000);

  }

  // print 6

  {

   digitalWrite(4,LOW);

   digitalWrite(12,HIGH);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,LOW);

   digitalWrite(26,LOW);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW);

   delay(1000);

  }

  // print 7

  {

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,HIGH);

   digitalWrite(25,HIGH);

   digitalWrite(26,HIGH);

   digitalWrite(27,HIGH);

   digitalWrite(5,LOW);

   delay(1000);

  }

  // print 8

  {

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,LOW);

   digitalWrite(26,LOW);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW);

   delay(1000);

  }

  // print 9

  {

   digitalWrite(4,LOW);

   digitalWrite(12,LOW);

   digitalWrite(33,LOW);

   digitalWrite(32,LOW);

   digitalWrite(25,HIGH);

   digitalWrite(26,LOW);

   digitalWrite(27,LOW);

   digitalWrite(5,LOW); 

   delay(1000);

  } 

}