#define ADC0 0

void setup()
{
  Serial.begin(9600);          //  setup serial
}

void loop()
{
    int val;
    int i = 0;
    int mV;
    int tC;
    int tF;

    do {
        val = analogRead(ADC0);    // read the input pin
    } while (val == 0 && ++i < 100);

    mV = (long)val * 5000 / 1024;
    tC = mV / 10;
    tF = tC * 9 / 5 + 32;
    //Serial.printf("mV = %d ; tC = %d ; tF = %d\n", mV, tC, tF);
    Serial.print("mV = ");
    Serial.print(mV);
    Serial.print("; ");
    Serial.print("tC = ");
    Serial.print(tC);
    Serial.print("; ");
    Serial.print("tF = ");
    Serial.println(tF);
    delay(5000);
}