#define PIN_LM35 34
#define PIN_LED1 14
#define PIN_LED2 27
#define PIN_LED3 26
#define PIN_LED4 25


void setup() {
  pinMode(PIN_LED1, OUTPUT);
  pinMode(PIN_LED2, OUTPUT);
  pinMode(PIN_LED3, OUTPUT);
  pinMode(PIN_LED4, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // Leitura da Tensão em mV calibrada
  int analogVolts = analogReadMilliVolts(PIN_LM35);
  float tempC = analogVolts / 10.0;
  Serial.print("Temperatura: ");
  Serial.print(tempC);
  Serial.println("°C");

  if (tempC >= 14 && tempC < 50) {
    digitalWrite(PIN_LED1, HIGH);
    digitalWrite(PIN_LED2, LOW);
    digitalWrite(PIN_LED3, LOW);
    digitalWrite(PIN_LED4, LOW);
  }

  if (tempC >= 50 && tempC < 100) {
    digitalWrite(PIN_LED2, HIGH);
    digitalWrite(PIN_LED3, LOW);
    digitalWrite(PIN_LED4, LOW);
  }

  if (tempC >= 100 && tempC < 200) {
    digitalWrite(PIN_LED3, HIGH);
    digitalWrite(PIN_LED4, LOW);
  }

  if (200 <= tempC) {
    digitalWrite(PIN_LED4, HIGH);
  }

  delay(500);
}