The following is what we have so far for our projects code.  We attempted to post the code through github but were having issues:

//LCD display
#include  <LiquidCrystal.h>         // Include the library to use a LCD display
#define          sensor           0        // Define the A0 pin as “sensor”
int  Vin;           //  Variable to read the value from the Arduino’s pin
float  Temperature; //  Variable that receives the converted voltage value to temperature
float     TF; // Variable to receive the converted value from  ºC to ºF
LiquidCrystal  lcd    (12, 11, 5, 4, 3, 2);
/* The function above declares which Arduino’s pins will be used for controlling the LCD */
  //knock Sensor
int ledPin = 13;
int knockSensor = 0;              
byte val = 0;
int statePin = LOW;
int THRESHOLD = 100;
void  setup()
{
  lcd.begin(16, 2);                            //  It tells the Arduino that the display is a 16x2 type
  lcd.print("Temperature: ");           //  Send the text to the screen of the display.
 pinMode(ledPin, OUTPUT);
 Serial.begin(9600);
}
void  loop()
{{
  Vin = analogRead (sensor);  /*   Tells the Arduino to read the pin and stores the value in “Vin” */
  Temperature=(500*Vin)/1023;  /* Converts the voltage value into temperature and stores it into the “Temperature”  variable  (in  ºC)*/
TF = ((9*Temperature)/5)+32; // Converts  ºC to ºF
  lcd.setCursor(0, 1);           // Moves  the cursor of the display to the next line
  lcd.print(TF);    // Exhibits the value of the temperature on the display
  lcd.print(" F");         // Writes “F” to indicate that it is in Fahrenheit scale.
   delay(1000);  //  Waits for a second to read the pin again
}
  val = analogRead(knockSensor);    
  if (val >= THRESHOLD) {
    statePin = !statePin;
    digitalWrite(ledPin, statePin);
    Serial.println("Knock!");
  }
  delay(100);  // we have to make a delay to avoid overloading the serial port
}