#define buzzer 2
#define ledBlue 12
#define ledYellow 4


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(A0, INPUT); //sensor cahaya
  pinMode(LED_BUILTIN, OUTPUT); //out_led
  pinMode(ledBlue, OUTPUT);
  pinMode(ledYellow, OUTPUT);
  pinMode(buzzer, OUTPUT); //out_sound

}

// membuat led berkedip
void ledBlink(int speed){
  digitalWrite(LED_BUILTIN, HIGH);
  digitalWrite(ledBlue, HIGH);
  digitalWrite(ledYellow, HIGH);
  delay(speed);
  digitalWrite(LED_BUILTIN, LOW);
  digitalWrite(ledBlue, LOW);
  digitalWrite(ledYellow, LOW);
}

// membuat sound buzzer
void soundAlert(int speed, int freq) {
  tone(buzzer, freq);
  delay(speed);
  noTone(buzzer);
}

void loop() {
  // put your main code here, to run repeatedly:
  int sensor_value = analogRead(A0);
  if(sensor_value < 100) {
    ledBlink(100);
    soundAlert(300, 2000);
    soundAlert(300, 3000);
  }else if(sensor_value >= 100 && sensor_value <=500) {
    ledBlink(100);
    soundAlert(1000, 2000);
    soundAlert(1000, 3000);
  }
  Serial.print("Cek Value: ");
  Serial.println(sensor_value);
}