Sound Sensor (KY-037)

// Sound Sensor (KY-037)
// Board: Arduino UNO
// Read analog value and optional digital threshold output.

const int ANALOG_PIN = A0;
const int DIGITAL_PIN = 2;

void setup() {
  Serial.begin(9600);
  pinMode(DIGITAL_PIN, INPUT);
}

void loop() {
  int analogValue = analogRead(ANALOG_PIN);
  int digitalValue = digitalRead(DIGITAL_PIN);

  Serial.print("Analog: ");
  Serial.print(analogValue);
  Serial.print(" | Digital: ");
  Serial.println(digitalValue);

  delay(500);
}