Temp Sensor 1

int tempPin = 9;//temperature sensor is in pin 0
float tempC = 0; //stores temperature sensor input data

void setup() {
  analogReference(INTERNAL);
  Serial.begin(9600); //opens serial communication
  pinMode(tempPin, INPUT);
}

void loop() {
  tempC = analogRead(tempPin); //reads tempPin data and stores in tempC
  //tempC = (5*tempC*100.0)/1024.0; //converts tempPin data to celsius
  Serial.println(tempC);
  delay(500);
}