Code for IR sensor



Code for Counter using IR sensor with NODEMCU


 int irPin=2;
int count=0;
boolean state = true;

 void setup() {
Serial.begin(9600);
pinMode(irPin, INPUT);
}

 void loop() {
  
  if (!digitalRead(irPin) && state){
      count++;
      state = false;
      Serial.print("Count: ");
      Serial.println(count);
      delay(100);
  }
  if (digitalRead(irPin)){
     state = true;
      delay(100);
  }

 }

Code for Object detection using IR sensor with NODEMCU

int value; // variable to store value read on digital pin 

void setup() 
{ 

pinMode(2, INPUT); // initialize digital pin 2 as an input 
pinMode(4, OUTPUT); //for LED as output

}

void loop() 
{ 
value = digitalRead(2); // read value on pin 2 
if(value==1) // if value is 1 
{ 
digitalWrite(4, HIGH); //turn LED on 
} 
else // otherwise 
{ 
digitalWrite(4, LOW); //turn LED off 
} 
}

Code for Detection of Object using IR sensor with NODEMCU


int value; // variable to store value read on digital pin 

void setup() 
{ 
pinMode(2, INPUT); // initialize digital pin 2 as an input 
Serial.begin(9600); 
} 

void loop() 
{ 
value = digitalRead(2); // read value on pin 2 
Serial.println(value); // print value on serial terminal 
delay(1000); // wait for 1 second 
}

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