#define SOUND_SENSOR_DIGITAL D1  // Sound sensor digital output pin
#define SOUND_SENSOR_ANALOG A0   // Sound sensor analog output pin
#define LED_PIN D2               // LED connected to D2

void setup() {
    Serial.begin(115200);            // Start serial communication
    pinMode(D1, INPUT); // Set sound sensor as input
    pinMode(D2, OUTPUT);        // Set LED as output
}

void loop() {
    int digitalValue = digitalRead(SOUND_SENSOR_DIGITAL); // Read digital signal (0 or 1)
    int analogValue = analogRead(SOUND_SENSOR_ANALOG);    // Read analog sound level (0-1023)

    // Print values to Serial Monitor
    Serial.print("Digital Output: ");
    Serial.print(digitalValue);
    Serial.print(" | Analog Output: ");
    Serial.println(analogValue);

    // If loud sound is detected, turn LED ON
    if (digitalValue == HIGH) {  
        digitalWrite(LED_PIN, HIGH);  // Turn ON LED
        Serial.println("Sound Detected! LED ON 🔴");
    } else {
        digitalWrite(LED_PIN, LOW);   // Turn OFF LED
    }

    delay(100); // Small delay for stability
}