Read02.py integrated with relay switch

Read02.py

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+#!/usr/bin/env python
+# -*- coding: utf8 -*-
+
+#import RPi.GPIO as GPIO
+import OPi.GPIO as GPIO
+import MFRC522
+import signal
+import time
+
+continue_reading = True
+
+relay_port = 8
+GPIO.setmode(GPIO.BOARD)
+GPIO.setup(relay_port, GPIO.OUT)
+GPIO.output(relay_port, GPIO.LOW)
+
+# Capture SIGINT for cleanup when the script is aborted
+def end_read(signal,frame):
+    global continue_reading
+    print "Ctrl+C captured, ending read."
+    continue_reading = False
+    GPIO.cleanup()
+
+# Hook the SIGINT
+signal.signal(signal.SIGINT, end_read)
+
+# Create an object of the class MFRC522
+MIFAREReader = MFRC522.MFRC522()
+
+# Welcome message
+print "Welcome to the MFRC522 data read example"
+print "Press Ctrl-C to stop."
+
+# This loop keeps checking for chips. If one is near it will get the UID and authenticate
+while continue_reading:
+    # Force lock the door
+    GPIO.output(relay_port, GPIO.LOW)
+
+    # Scan for cards    
+    (status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
+
+    # If a card is found
+    if status == MIFAREReader.MI_OK:
+        print "Card detected"
+
+    # Get the UID of the card
+    (status,uid) = MIFAREReader.MFRC522_Anticoll()
+
+    # If we have the UID, continue
+    if status == MIFAREReader.MI_OK:
+
+        # Print UID
+        print "Card read UID: "+str(uid[0])+","+str(uid[1])+","+str(uid[2])+","+str(uid[3])
+
+	# CRIAR FUNÇÃO PARA BUSCAR CORRESPONDENCIA NO BANCO DE DADOS
+
+	print "Teste: "+ str(uid[0] == 62 and uid[1] == 54 and uid[2] == 133 and uid[3] == 89)
+
+        if (uid[0] == 62 and uid[1] == 54 and uid[2] == 133 and uid[3] == 89):
+          GPIO.output(relay_port, GPIO.HIGH)
+          time.sleep(5)
+        else:
+          GPIO.output(relay_port, GPIO.LOW)
+
+	#time.sleep(1)
+
+        # This is the default key for authentication
+        key = [0xFF,0xFF,0xFF,0xFF,0xFF,0xFF]
+
+        # Select the scanned tag
+        MIFAREReader.MFRC522_SelectTag(uid)
+
+        # Authenticate
+        status = MIFAREReader.MFRC522_Auth(MIFAREReader.PICC_AUTHENT1A, 8, key, uid)
+
+        # Check if authenticated
+        if status == MIFAREReader.MI_OK:
+            MIFAREReader.MFRC522_Read(8)
+            MIFAREReader.MFRC522_StopCrypto1()
+        else:
+            print "Authentication error"