new_contents: ## Open a serial connection with Arduino.
  import time
  import serial
  ser = serial.Serial("COM9", 9600)   # Open serial port that Arduino is using
  time.sleep(3)                       # Wait 3 seconds for Arduino to reset
  print ser                           # Print serial config
  
  
  print "Sending serial command to CLOSE the dust cover."
  ser.write("C")
  print "Closing serial connection."
  ser.close()
  # Reminder to close the connection when finished
  if(ser.isOpen()):
     print "Serial connection is still open."
  
subject: Create close.py