 const int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2
 OneWire ds(DS18S20_Pin); // on digital pin 2
 float temperature = -12345;
-
-//voltage divider variables
-#define NUM_VOLTAGE_SAMPLES 10
-int sum = 0;                    // sum of samples taken
-unsigned int sample_count = 0; // current sample number
-float voltage = 0.0;            // calculated voltage
-int volt_pin = A3;
 
 // Convert normal decimal numbers to binary coded decimal
 byte decToBcd(byte val)

  dataFile.print(second);
  dataFile.print(",");
  dataFile.print(temp);
  dataFile.print(",");
  dataFile.close();

#if DEBUG

/*
  This code logs the temperature from a DS18B20 temperature sensor
  and prints the temperature along with a time stamp using a
  DS3231 Clock and a SparkFun microSD Transflash Breakout
  
  This uses code from http://bildr.org/2011/07/ds18b20-arduino/
   and https://learn.sparkfun.com/tutorials/microsd-shield-and-sd-breakout-hookup-guide sd card code
   and http://tronixstuff.com/2014/12/01/tutorial-using-ds1307-and-ds3231-real-time-clock-modules-with-arduino/ using the clock
   and https://github.com/OSBSS/TRH/blob/master/TRH.ino main code body
   and https://github.com/jarzebski/Arduino-DS3231 library we use for clock interrupts
   and was modified to save the temperature, in fahrenheit, and time data to a microSD card

  @author Humane Interface Design Enterprise, Michigan Tech
