MAX9814 Otomatik Kazanç Kontrollü (AGC) Elektret Mikrofon Amplifikatörü

const int micPin = A0;
const int sampleWindow = 50; // 50 ms pencere

void setup() {
  Serial.begin(115200);
}

void loop() {
  unsigned long startMillis = millis();
  unsigned int peakToPeak = 0;
  unsigned int signalMax = 0;
  unsigned int signalMin = 1024;

  // 50 ms boyunca en yüksek ve en düşük dalga tepesini yakala
  while (millis() - startMillis < sampleWindow) {
    int sample = analogRead(micPin);
    if (sample < 1024) {
      if (sample > signalMax) signalMax = sample;
      if (sample < signalMin) signalMin = sample;
    }
  }
  peakToPeak = signalMax - signalMin;
  float volts = (peakToPeak * 5.0) / 1024.0;

  Serial.print("Ses Tepe Voltajı (Vpp): ");
  Serial.print(volts);
  Serial.println(" V");
  delay(100);
}