const int sensorMin = 0; 
const int sensorMax = 600; 
int led= 4;
int buzzer = 2;


void setup() {
  pinMode(led, OUTPUT);
   pinMode(buzzer, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int sensorReading = analogRead(A0);
  int range = map(sensorReading, sensorMin, sensorMax, 0, 3);

  
  switch(range) {
    case 0: 
     Serial.println("barang jatuh");
     digitalWrite(led, LOW);
     delay(700);
     digitalWrite(led, HIGH);
     delay(300);
     tone(buzzer,750);
      delay(700);

     noTone(buzzer);
     delay(300);

     break;
    case 1:
     Serial.println("gak ada siapa siapa");
     digitalWrite(led, LOW);
     break;
    case 2: 
      Serial.println("ada tamu");
      digitalWrite(led, LOW);
     delay(800);
     digitalWrite(led, HIGH);
     delay(1000);
     tone(buzzer,2000);
      delay(1000);

     noTone(buzzer);
     delay(800);

    
  }
  delay(500); 
}