float temp;
int led=13;
float value;
int sensor=A0;
void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(led, OUTPUT);
pinMode(sensor, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
value=analogRead(sensor);
temp=0.48824*value;
if(temp>200)
{
  Serial.println(temp);
  digitalWrite(led, HIGH);
  Serial.println("led is on");
}
else
{
  digitalWrite(led, LOW);
  Serial.println("led is off");
}
Serial.println(value);
delay(1000);
}