#!/usr/bin/env python
import os
import sys
import serial
import base64
from time import sleep
if len(sys.argv) < 2:
print "firt argument is device."
raise SystemExit
ser = serial.Serial(sys.argv[1], 38400, timeout=0.5, rtscts=0)
count = 8*8
for i in range(count):
ser.write('\0')
#sleep(0.1)