// Define the digital pins for the PIR sensor and LED
int pirPin = 2;
int ledPin = 7;
void setup() {
  // Set the PIR sensor pin as input
  pinMode(pirPin, INPUT);
  // Set the LED pin as output
  pinMode(ledPin, OUTPUT);
}
void loop() {
  // Read the value from the PIR sensor
  int pirValue = digitalRead(pirPin);
  // If the PIR sensor detects motion, turn on the LED
  if (pirValue == HIGH) {
    digitalWrite(ledPin, HIGH);
  } 
  // If the PIR sensor does not detect motion, turn off the LED
  else {
    digitalWrite(ledPin, LOW);
  }
}