const int addressPinS0 = 8;  // S0 pin on 74HC4067
const int addressPinS1 = 9;  // S1 pin on 74HC4067
const int addressPinS2 = 10;  // S2 pin on 74HC4067
const int addressPinS3 = 11;  // S3 pin on 74HC4067
const int analogPin = A0;    // Analog pin to read from

void setup() {
  pinMode(addressPinS0, OUTPUT);
  pinMode(addressPinS1, OUTPUT);
  pinMode(addressPinS2, OUTPUT);
  pinMode(addressPinS3, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  for (int i = 0; i < 5; i++) {
    // Set the address pins based on the current iteration
    digitalWrite(addressPinS0, i & B0001);
    digitalWrite(addressPinS1, (i & B0010) >> 1);
    digitalWrite(addressPinS2, (i & B0100) >> 2);
    digitalWrite(addressPinS3, (i & B1000) >> 3);

    // Read the analog value from the selected input
    int sensorValue = analogRead(analogPin);

    // Print the result
    Serial.print("Input ");
    Serial.print(i);
    Serial.print(": ");
    //Serial.println(sensorValue);

    int Vout = sensorValue;
    float voltage = (5.0 / 1024.0) * Vout;
    float voltageIn = voltage / ((49400.0 / 33000.0)+1);
    float resistance = (-47000 * (voltageIn - 2 )) / ((voltageIn)+ 3);
    double temperature = 1 / ((1.0/298.0) + (1.0/3976.0) * log(resistance / 10000.0));
    double temperatureC = temperature - 273;
    
    Serial.print(Vout);
    Serial.print(", ");
    Serial.println(temperatureC);

    delay(1000);  // Add a delay to make readings more readable
  }
}