// thermistor-1.ino Simple test program for a thermistor for Adafruit Learning System
    // https://learn.adafruit.com/thermistor/using-a-thermistor by Limor Fried, Adafruit Industries
    // MIT License - please keep attribution and consider buying parts from Adafruit
     
    // the value of the 'other' resistor

    #include <SoftwareSerial.h>
// ***
// *** Define the RX and TX pins. Choose any two
// *** pins that are unused. Try to avoid D0 (pin 5)
// *** and D2 (pin 7) if you plan to use I2C.
// ***
#define RX    2   // *** D3, Pin 2
#define TX    1   // *** D4, Pin 3

// ***
// *** Define the software based serial port. Using the
// *** name Serial so that code can be used on other
// *** platforms that support hardware based serial. On
// *** chips that support the hardware serial, just
// *** comment this line.
// ***
SoftwareSerial Serial(RX,TX);
    // What pin to connect the sensor to
    #define SENSORPIN 3

    void setup(void)
    {
      Serial.begin(9600);
    }
     
    void loop(void)
    {
      int reading;
     
      reading = analogRead(SENSORPIN);
     
      //Serial.print("Analog reading "); 
      //Serial.println(reading);
     
      // convert the value to resistance
      //reading = (1023 / reading)  - 1;     // (1023/ADC - 1) 
      //reading = SERIESRESISTOR / reading;  // 10K / (1023/ADC - 1)
      //reading = reading - reading2;
      //Serial.print("Thermistor resistance "); 
      Serial.println(reading);
     
      delay(50);
    }