void setup() {
  // Set pin modes
  pinMode(2, INPUT);    // Pin 2 as input for tilt sensor
  pinMode(5, OUTPUT);   // Pin 5 as output for yellow LED
  pinMode(6, OUTPUT);   // Pin 6 as output for yellow LED
  pinMode(9, OUTPUT);   // Pin 9 as output for red LED
  pinMode(10, OUTPUT);  // Pin 10 as output for red LED
  pinMode(A0, INPUT);  // Pin A0 as INPUT for POT
  Serial.begin(9600);   // Start serial communication for debugging
}

void loop() {
  // Read tilt sensor state
  int tiltState = digitalRead(2);
  
  // Read potentiometer value to control brightness
  int potValue = analogRead(A0);
  // Map potentiometer value to a brightness range (0-255)
  int brightness = map(potValue, 0, 1023, 0, 255);

  // Check tilt sensor state
  if (tiltState == HIGH) {
    // If tilted, control yellow LED brightness and state
    analogWrite(5, brightness);
    digitalWrite(6, LOW);         
    digitalWrite(9, LOW);         
    digitalWrite(10, LOW);       
    Serial.println("Tilted: Yellow LED ON, Red LED OFF");  // Print tilt status
  } else {
    // If not tilted, control red LED brightness and state
    digitalWrite(5, LOW);         
    digitalWrite(6, LOW);       
    analogWrite(9, brightness);   
    digitalWrite(10, LOW);       
    Serial.println("Not Tilted: Red LED ON, Yellow LED OFF");  // Print tilt status
  }

  delay(100);  // Delay for stability and responsiveness
}