#define IR_DSensor 2 /*D2 IR pin defined*/
#define IR_ASensor A0 /*A0 IR pin defined*/

#define LED5 5       /*D5 LED Pin defined*/
#define LED6 6       /*D5 LED Pin defined*/
int IRA;             /*Variable that will store IR output status*/
int IRD;             /*Variable that will store IR output status*/
void analogIR();
void digitalIR();

void setup()
{
pinMode(IR_ASensor, INPUT);   /*IR Pin D2 defined as Input*/
pinMode(IR_DSensor, INPUT);   /*IR Pin D2 defined as Input*/

pinMode(LED5, OUTPUT);        /*D3 pin for LED is set as Output*/
pinMode(LED6, OUTPUT);        /*D3 pin for LED is set as Output*/

}
void loop()
{
  digitalIR();
  analogIR();   
}

void analogIR()
{
IRA=analogRead(IR_ASensor);  /*analog read function to check IR pin status*/
if(IRA==LOW) /*If sensor detect any reflected ray*/ 
{ 
  digitalWrite(LED5,HIGH);   /*LED will turn ON*/
}
else 
{
  digitalWrite(LED5,LOW);  /*if no reflection detected LED will remain OFF*/
}
}

void digitalIR()
{
IRD=digitalRead(IR_DSensor);  /*digital read function to check IR pin status*/
if(IRD==LOW) /*If sensor detect any reflected ray*/ 
{ 
  digitalWrite(LED6,HIGH);   /*LED will turn ON*/
}
else 
{
  digitalWrite(LED6,LOW);  /*if no reflection detected LED will remain OFF*/
}
}