#define LED_AZ 3
#define LED_VM 4
#define LED_AM 5
#define LED_VD 6

// Variável que armazena o valor convertido pelo ADC 
int valorAnalog;

void setup() {
  Serial.begin(9600);
  pinMode(LED_AZ, OUTPUT);
  pinMode(LED_AM, OUTPUT);
  pinMode(LED_VD, OUTPUT);
  pinMode(LED_VM, OUTPUT);  
}

void loop() {
  valorAnalog = analogRead(A0);
  delay(10); // 0.01 s
  Serial.println("Valor convertido pelo ADC: " + String(valorAnalog));

  if(valorAnalog < 200){
    digitalWrite(LED_VD, HIGH); 
    digitalWrite(LED_AM, LOW);
  }

  if(valorAnalog >= 200 && valorAnalog < 650){
    digitalWrite(LED_VD, LOW);
    digitalWrite(LED_VM, LOW);
    digitalWrite(LED_AM, HIGH);
  }

  if(valorAnalog >= 650 && valorAnalog < 950){
    digitalWrite(LED_AM, LOW);
    digitalWrite(LED_VM, HIGH);
  }

  if(valorAnalog >= 950 && valorAnalog < 1000){
    pisca();
  }  

  if(valorAnalog > 1000){
    while(true){
      Serial.println("Alarme!!");
      piscaVermelho();
    }
  }
  
  delay(500); // 0.5 s
}

void piscaVermelho(){
  digitalWrite(LED_VM, HIGH);
  delay(300); // 0.3s  
  digitalWrite(LED_VM, LOW);
  delay(300);
}

void pisca(){
  digitalWrite(LED_VD, HIGH);
  digitalWrite(LED_AM, HIGH);
  digitalWrite(LED_VM, HIGH);
  delay(300); // 0.3s
  digitalWrite(LED_VD, LOW);
  digitalWrite(LED_AM, LOW);
  digitalWrite(LED_VM, LOW);
  delay(300);
}