int sensorPin = A0;  // Analog input pin for the potentiometer
int ledPin = 9;      // Digital output pin for the LED
int threshold = 500; // Threshold value for triggering the LED

void setup() {
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600); // For monitoring values
}

void loop() {
  int sensorValue = analogRead(sensorPin); // Read potentiometer
  Serial.println(sensorValue);             // Print value to Serial Monitor
  
  if (sensorValue > threshold) {           // Check if above threshold
    digitalWrite(ledPin, HIGH);            // Turn on LED
  } else {
    digitalWrite(ledPin, LOW);             // Turn off LED
  }
  delay(100);
}