#include <OneWire.h>
#include <DallasTemperature.h>


const float baselineTemp = 20.0;
float temperature;
OneWire oneWire(10);
DallasTemperature sensor(&oneWire);

void setup(void) {
  Serial.begin(115200);
  delay(2);
  sensor.begin();
  delay(20);

  for(int pinNumber = 2;pinNumber<5;pinNumber++){
    pinMode(pinNumber, OUTPUT);
    digitalWrite(pinNumber, LOW);
  }
  
}


void loop() {
 sensor.requestTemperatures();
  Serial.print("Temperature is: ");
  delay(10);
  Serial.println(sensor.getTempCByIndex(0));
  //delay(1000);
  temperature = sensor.getTempCByIndex(0);
  Serial.println(temperature);
  Serial.println(baselineTemp);

  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(1000); 

}