#define segA 2// connecting segment A to PIN2
#define segB 3// connecting segment B to PIN3
#define segC 4// connecting segment C to PIN4
#define segD 5// connecting segment D to PIN5
#define segE 6// connecting segment E to PIN6
#define segF 7// connecting segment F to PIN7
#define segG 8// connecting segment G to PIN8

int COUNT=0;//count integer for 0-9 increment

void setup()

{
  for (int i=2;i<9;i++)
      {
        pinMode(i, OUTPUT);// taking all pins from 2-8 as output
      }
}
void loop()

{

switch (COUNT)


                {

               


               

 


                case 2:// when count value is 2 show”2” on disp


                digitalWrite(segA, LOW);


                digitalWrite(segB, LOW);


                digitalWrite(segC, HIGH);


                digitalWrite(segD, LOW);


                digitalWrite(segE, LOW);


                digitalWrite(segF, HIGH);


                digitalWrite(segG, LOW);


                break;


 


                


 


                case 4:// when count value is 4 show”4” on disp


                digitalWrite(segA, HIGH);


                digitalWrite(segB, LOW);


                digitalWrite(segC, LOW);


                digitalWrite(segD, HIGH);


                digitalWrite(segE, HIGH);


                digitalWrite(segF, LOW);


                digitalWrite(segG, LOW);


                break;


 


               


 


                case 6:// when count value is 6 show”6” on disp


                digitalWrite(segA, LOW);


                digitalWrite(segB, HIGH);


                digitalWrite(segC, LOW);


                digitalWrite(segD, LOW);


                digitalWrite(segE, LOW);


                digitalWrite(segF, LOW);


                digitalWrite(segG, LOW);


                break;


 




              case 8:// when count value is 8 show”8” on disp


                digitalWrite(segA, LOW);


                digitalWrite(segB, LOW);


                digitalWrite(segC, LOW);


                digitalWrite(segD, LOW);


                digitalWrite(segE, LOW);


                digitalWrite(segF, LOW);


                digitalWrite(segG, LOW);


                break;


 


               

                


                }


                if (COUNT<9)


                {

					COUNT++;
					delay(150);///increment count integer for every second
 
                }

                if (COUNT==9)


                {

					COUNT=2;// if count integer value is equal to 9, reset it to two.
					delay(150);

                 
                }


}