Verify User Knock Data

check_Knock.py

import pifacedigitalio as pfio
import time,sys, threading, pickle

pifacedigital = pfio.PiFaceDigital()
pfio.init()

#Solenoid LOW
pfio.digital_write(5, 1)
time.sleep(.1)				

count = 0

f = open("KNOCKS","r")

CORRECT_CODE = pickle.load(f)

print "Enter code to open door. Ctrl+C to SAVE and EXIT: "
KNOCKS = {}
TIMES = []
		
while True:
		
	try:
		#Check for action on the Piezo Pad
		knock = pfio.digital_read(4,0)
		
		#if a knock occurs....
		if knock == 1:
			if count == 0:
				start = time.time()
				kn = "KNOCK%d" % count 
				print kn + "\n"
				#ADD TIME TO ARRAY
				TIMES.append(start)
				KNOCKS[kn] = TIMES[count]
				count = count + 1
			else:
				kn = "KNOCK%d" % count 
				print kn + "\n"
				#GET TIME OF KNOCK
				t = time.time() - start
				#ADD TIME TO ARRAY
				TIMES.append(t)
				KNOCKS[kn] = TIMES[count]
				count = count + 1
				
			#GREEN LED ON
			pfio.digital_write(6, 1)
			#RED LED OFF
			pfio.digital_write(7, 0)
			
			time.sleep(.05)
			
		else:
			#RED LED ON
			pfio.digital_write(7, 1)
			#GREEN LED OFF
			pfio.digital_write(6, 0)
							
	except KeyboardInterrupt:			
		#CHECK KNOCK AGAINST ORIGINAL (CORRECT_CODE)
		#check_count == 1 to elimate checking initial time of first knock
		print "USER CODE IS: \n"
		print CORRECT_CODE, "\n"
		print "CODE TO CHECK IS: \n"
		print KNOCKS, "\n"
		check_count = 1
		PASS = 1
		CHECK_CODE = KNOCKS
		print "CHECKING NUMBER OF KNOCKS\n"
		time.sleep(1)
		if len(CORRECT_CODE) == len(CHECK_CODE):
			print "Number of knock is correct\n"
		else:
			print "Number of knock is incorrect :(\n"
			PASS = 0
		print "CHECKING TIME BETWEEN KNOCKS"
		time.sleep(1)
		while check_count < len(CHECK_CODE):
			if (CHECK_CODE["KNOCK%d" % check_count] < CORRECT_CODE["KNOCK%d" % check_count] + .25):
				print "KNOCK%d LESS THAN UPPER BOUNDS\n" % check_count
				if (CHECK_CODE["KNOCK%d" % check_count] > CORRECT_CODE["KNOCK%d" % check_count] - .25):
					print "KNOCK%d GREATER THAN LOWER BOUNDS\n" % check_count
				else:
					print "KNOCK%d LESS THAN LOWER BOUNDS :( \n" % check_count
					PASS = 0
			else:
				print "KNOCK%d GREATER THAN UPPER BOUNDS :( \n" % check_count	
				PASS = 0
			check_count += 1
		if PASS:
			print "YOU HAVE KNOCKED YOUR CODE SUCCESSFULLY!!!! :D\n"
			print "OPENING DOOR LOCK FOR 5 SECONDS.....\n"
			#Solenoid ON
			pfio.digital_write(5, 0)
			time.sleep(5)
			#Solenoid OFF
			pfio.digital_write(5, 1)
			time.sleep(2)
			
		#General Cleanup
		pfio.deinit() 
		sys.exit()