#include "SevSeg.h" 
SevSeg sevseg; 


void setup()
{
  byte sevenSegments = 1; 
  byte CommonPins[] = {};  /*Define Common pin of seven-segment*/
  byte LEDsegmentPins[] = {15, 2, 4, 5, 18, 19, 21};  /*Define ESP32 digital pins for seven-segment*/
  bool resistorsOnSegments = true; /*assigning Boolean type to the registers of the seven=segment*/
  sevseg.begin(COMMON_ANODE, sevenSegments, CommonPins, LEDsegmentPins, resistorsOnSegments);/*seven-segment configuration */
  sevseg.setBrightness(80);  
  pinMode(26, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(27, OUTPUT);
  Serial.begin(115200);
  Serial.println("Hello, ESP32! enter value till 9 for 3 values");

}
void loop()
{
   if (Serial.available())
{
int a = Serial.parseInt();
Serial.println(a);
int b = Serial.parseInt();
Serial.println(b);
int c = Serial.parseInt();
Serial.println(c);
   for(int i = a; i>=0; i--)   
   {
     sevseg.setNumber(i);
     sevseg.refreshDisplay(); /*Refresh seven-segment display after each iteration*/
     delay(1000); 
     digitalWrite(26, HIGH); 
     digitalWrite(12, LOW); 
     digitalWrite(27, LOW);
   }
   delay(100);
   digitalWrite(26, LOW);
   digitalWrite(12, LOW); 
   digitalWrite(27, LOW);
      for(int i = b; i>=0; i--)   
   {
     sevseg.setNumber(i);
     sevseg.refreshDisplay(); /*Refresh seven-segment display after each iteration*/
     delay(1000); 
     digitalWrite(26, LOW); 
     digitalWrite(12, HIGH); 
     digitalWrite(27, LOW);   
   }
   delay(100);
  
   digitalWrite(26, LOW);
   digitalWrite(12, LOW); 
   digitalWrite(27, LOW);
      for(int i = c; i>=0; i--)   
   {
     sevseg.setNumber(i);
     sevseg.refreshDisplay(); /*Refresh seven-segment display after each iteration*/
     delay(1000); 
     digitalWrite(27, HIGH);  
     digitalWrite(26, LOW);
     digitalWrite(12, LOW); 

   }
   delay(100);}

}