Laboratorio de Enrolamiento

const int sensorPin = A0;
 const float baselineTemp = 20.0;
void setup(){
  Serial.begin(9600); // open a serial port.
for(int pinNumber = 2; pinNumber<5; pinNumber++){
        pinMode(pinNumber, OUTPUT);
        digitalWrite(pinNumber, LOW);
  }
}
void loop(){

    int sensorVal = analogRead(sensorPin);
Serial.print("Sensor Value: ");
Serial.print(sensorVal);
// convert the ADC reading to voltage.
float voltage = (sensorVal/1024.0) * 5.0;
Serial.print(" , Volts: ");
Serial.print(voltage);
Serial.print(" , degrees C: ");
// convert the voltage to temperature in degrees.
float temperature = (voltage - .5) * 100;
Serial.println(temperature);
if(temperature < baselineTemp){
     digitalWrite(2, LOW);
     digitalWrite(3, LOW);
     digitalWrite(4, LOW);
}else if(temperature >= baselineTemp+2 &&
    temperature < baselineTemp+4){
    digitalWrite(2, HIGH);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
}else if(temperature >= baselineTemp+4 &&
    temperature < baselineTemp+6){
    digitalWrite(2, HIGH);
    digitalWrite(3, HIGH);
    digitalWrite(4, LOW);
}else if(temperature >= baselineTemp+6){
     digitalWrite(2, HIGH);
     digitalWrite(3, HIGH);
     digitalWrite(4, HIGH);
  }

    delay(1);

}