#!/usr/bin/env python

from time import sleep
import serial
import ntplib
from time import ctime
ser = serial.Serial('/dev/ttyUSB0')
print(ser.name)
sleep(2)
if ser.isOpen():
    print "Se ha abierto el puerto /dev/ttyUSB0"
c = ntplib.NTPClient()
response = c.request('europe.pool.ntp.org', version=3)
response.offset
print (ctime(response.tx_time))
print (ntplib.ref_id_to_text(response.ref_id))
x = ntplib.NTPClient()
a = ctime(response.tx_time)
while True:
	ser.write(str(a))
	sleep(5)
	response = c.request('uk.pool.ntp.org', version=3)
	a = ctime(response.tx_time)