#!/usr/bin/python

import serial
import sys

if len(sys.argv) != 3:
  print "Usage:\n\t", sys.argv[0], "[L,R,ext] [oldpro,nuthouse]"
  sys.exit(0)

port = serial.Serial('/dev/ttyS0', 19200)
if sys.argv[2] == 'oldpro':
  if sys.argv[1] == 'L':
    port.write('6')
  if sys.argv[1] == 'R':
    port.write('2')
  if sys.argv[1] == 'ext':
    port.write('a')
if sys.argv[2] == 'nuthouse':
  if sys.argv[1] == 'L':
    port.write('5')
  if sys.argv[1] == 'R':
    port.write('1')
  if sys.argv[1] == 'ext':
    port.write('9')
port.close()