const int lm35Pin = A0;

void setup() {
  Serial.begin(9600);
  pinMode(lm35Pin, INPUT);
}

void loop() {
  int adcVal = analogRead(lm35Pin);
  float milliVolt = adcVal * (5000.0 / 1024.0);
  float tempC = milliVolt / 10;
  float tempF = tempC * 9 / 5 + 32;

  Serial.print("Temperature: ");
  Serial.print(tempC);  
  Serial.print("°C");
  Serial.print("  ~  ");
  Serial.print(tempF);   
  Serial.println("°F");

  delay(1000);
}