RasPi telent LED blnken

#!/usr/bin/python             

# modified from

# http://stackoverflow.com/questions/39973653/python-socket-programming-and-led-interfacing

import socket                 # Import socket module

import time

import RPi.GPIO as GPIO

ARDUINO_LED = 4 # Raspberry GPIO 4

GPIO.setmode(GPIO.BCM)  # set board mode to Broadcom

GPIO.setup(4, GPIO.OUT)

def led_blink(msg):

    print "got msg", msg         # Debug msg

    GPIO.output(ARDUINO_LED, GPIO.HIGH)

    time.sleep(0.1)

    GPIO.output(ARDUINO_LED, GPIO.LOW)

s = socket.socket()           # Create a socket object

host = ''                     # all interfaces

port = 5004                   # Port

s.bind((host, port))          # Bind to the port

s.listen(5)                   # Now wait for client connection.

print "Listening"

c, addr = s.accept()          # Establish connection with client.

while True:

    msg = c.recv(1024)

    print type(msg)

    print map(ord,msg)

    print 'Got connection from', addr

    if msg[0:4] == "Exit":

        print "EXIT !!"

        break

    led_blink(msg)

c.close()