Simon Says (Before Optimization)

import time
import random
import pyfirmata
# Connecting to arduino
if __name__ == '__main__':
    board = pyfirmata.Arduino('COM3')
# Defining a function to make an LED blink
def ledBlink(num):
    board.digital[num].write(1)
    time.sleep(.1)
    board.digital[num].write(0)
    time.sleep(.1)
# Assigning each button's variable to its pin number
button2 = board.digital[2]
button3 = board.digital[3]
button4 = board.digital[4]
button5 = board.digital[5]
# Defining useful variables
previous_button_state = 0
stopper = False
length = 0
# Start iterator to recieve input data
it = pyfirmata.util.Iterator(board)
it.start()
# Setup buttons for input
button2.mode = pyfirmata.INPUT
button3.mode = pyfirmata.INPUT
button4.mode = pyfirmata.INPUT
button5.mode = pyfirmata.INPUT
print("Enter 'Quit' to end.")
while stopper == False:
    pattern = []
    levels = input("Please enter the number of levels you wish to play: ")
    time.sleep(3)
    if levels == 'Quit':
        exit()
    else:
        levels = int(levels)
        levels += 1
    for count in range(levels):
        if stopper == True:
                break
        randomLed = random.randint(10, 13)
        if count != 0:
            pattern = pattern + [randomLed,]
            length += len(pattern)
            patternCheck = []
        print('Pattern: ',pattern)
        print('Checker: ',patternCheck)
        if length != 0:
            print("Level:",length)
            time.sleep(1)
        for i in range(len(pattern)):
            if stopper == True:
                break
            board.digital[pattern[i]].write(1)
            time.sleep(.5)
            board.digital[pattern[i]].write(0)
            time.sleep(.5)
            print('Pattern: ',pattern)
            print('Checker: ',patternCheck)
        while True:
            stopper1 = None
            cLength = len(pattern)
            time.sleep(0.01)
            button_state = button2.read()
            if button_state != previous_button_state:
                if button_state == 1:
                    ledBlink(13)
                    patternCheck = patternCheck + [13,]
                    print(patternCheck)
                    for lights in range (cLength):
                        if patternCheck == pattern and len(patternCheck) == len(pattern):
                            stopper1 = True
                    print("Pattern: ",pattern)
                    print("Checker: ",patternCheck)
                    print("Length: ",cLength)
            previous_button_state = button_state
            time.sleep(0.01)
            button_state = button3.read()
            if button_state != previous_button_state:
                if button_state == 1:
                    ledBlink(12)
                    patternCheck = patternCheck + [12,]
                    print(patternCheck)
                    for lights in range (cLength):
                        if patternCheck == pattern and len(patternCheck) == len(pattern):
                            stopper1 = True
                    print("Pattern: ",pattern)
                    print("Checker: ",patternCheck)
                    print("Length: ",cLength)
            previous_button_state = button_state
            time.sleep(0.01)
            button_state = button4.read()
            if button_state != previous_button_state:
                if button_state == 1:
                    ledBlink(11)
                    patternCheck = patternCheck + [11,]
                    print(patternCheck)
                    for lights in range (cLength):
                        if patternCheck == pattern and len(patternCheck) == len(pattern):
                            stopper1 = True
                    print("Pattern: ",pattern)
                    print("Checker: ",patternCheck)
                    print("Length: ",cLength)
            previous_button_state = button_state
            time.sleep(0.01)
            button_state = button5.read()
            if button_state != previous_button_state:
                if button_state == 1:
                    ledBlink(10)
                    patternCheck = patternCheck + [10,]
                    print(patternCheck)
                    for lights in range (cLength):
                        if patternCheck == pattern and len(patternCheck) == len(pattern):
                            stopper1 = True
                    print("Pattern: ",pattern)
                    print("Checker: ",patternCheck)
                    print("Length: ",cLength)
            if pattern == patternCheck:
                break
            elif stopper1 == True:
                break
            elif len(pattern) == len(patternCheck):
                if pattern != patternCheck:
                    stopper = True
                    break
            previous_button_state = button_state
    if stopper == True:
        print("Game Over. :(")
    else:
        print("Good Job!")