int lm_35=A3;
int led1=13;
int led2=12;
int led3=11;
void setup()
{
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
  pinMode(led3,OUTPUT);
  pinMode(lm_35,INPUT);
  Serial.begin(9600);
}
void loop() 
{
  int temp_adc;
  float temp;
  temp_adc=analogRead(lm_35);
  temp=temp_adc*4.88;
  temp=temp/10;
  Serial.println("Temperature= ");
  Serial.println(temp);
  Serial.println("Degree Celsius");
  if(temp>100)
  {
    digitalWrite(led1,HIGH);
    digitalWrite(led2,LOW);
    digitalWrite(led3,LOW);
    Serial.println("Temperature is very high");
    
  }
  else if(temp=100)
  {
    digitalWrite(led1,LOW);
    digitalWrite(led2,HIGH);
    digitalWrite(led3,LOW);
    Serial.println("Temperature is moderate");
  }
  else
  {
    digitalWrite(led1,LOW);
    digitalWrite(led2,LOW);
    digitalWrite(led3,HIGH);
    Serial.println("Temperature is very low");
  }
  
  delay(1000);
  

}