const int ledPin = 13;
const int sensorPin = A0;

void setup() {
  pinMode(ledPin, OUTPUT);
  pinMode(sensorPin, INPUT);
  Serial.begin(9600);
}

void loop() {
  digitalWrite(ledPin, HIGH);  // Turn on the LED
  delay(500);                   // Adjust based on your modulation scheme
  digitalWrite(ledPin, LOW);   // Turn off the LED
  delay(500);                   // Adjust based on your modulation scheme

  int sensorValue = analogRead(sensorPin);
  Serial.println(sensorValue);

  delay(1000);  // Adjust based on your modulation scheme
}