#!/usr/bin/env python

from evdev import InputDevice, ecodes, list_devices
from select import select
import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BOARD)
GPIO.setwarnings(False)

keys = "X^1234567890XXXXqwertzuiopXXXXasdfghjklXXXXXyxcvbnmXXXXXXXXXXXXXXXXXXXXXXX"
dev = InputDevice("/dev/input/event0")

barcode = ""
dev.grab()
while True:
    r,w,x = select([dev], [], [])
    #for event in dev.read_loop():
    for event in dev.read():
        #if event.type == ecodes.EV_KEY:
        if event.type == 1 and event.value == 1:
            barcode += (keys[event.code])
    if (len (barcode)) > 13:
        break;
#         l = 1
        print("barcode: " + str(barcode))
    if barcode == "1234567890X":
            del barcode
            import RPi.GPIO as GPIO
            import time
            GPIO.setmode(GPIO.BOARD)
            GPIO.setwarnings(False)
            GPIO.setup(7,GPIO.OUT)
            print ("LED on")
            GPIO.output(7,GPIO.HIGH)
            time.sleep(1)
            print ("LED off")
            GPIO.output(7,GPIO.LOW)