int sensorPin = 31;  // Pin connected to the inductive sensor output
int ledPin = 13;    // Pin connected to an LED (for indication)

void setup() {
  pinMode(sensorPin, INPUT);  // Set sensor pin as input
  pinMode(ledPin, OUTPUT);    // Set LED pin as output
  Serial.begin(9600);         // Start serial communication for debugging
}

void loop() {
  int sensorValue = digitalRead(sensorPin);  // Read the sensor output
  if (sensorValue == HIGH) {                  // Object detected
    digitalWrite(ledPin, HIGH);               // Turn on LED
    Serial.println("Metal Object Detected!");
  } else {
    digitalWrite(ledPin, LOW);                // Turn off LED
    Serial.println("No Object Detected");
  }
  delay(100);  // Delay to avoid excessive serial prints
}