Beep

import RPi.GPIO as GPIO
import time

# Set #17 as buzzer pin
BeepPin = 17

def print_message():
    print ("========================================")
    print ("|                 Beep                 |")
    print ("|    ------------------------------    |")
    print ("|        Buzzer connect to GPIO0       |")
    print ("|                                      |")
    print ("|            Make Buzzer beep          |")
    print ("|                                      |")
    print ("|                                      |")
    print ("========================================\n")
    print ('Program is running...')
    print ('Please press Ctrl+C to end the program...')

def setup():
    # Set the GPIO modes to BCM Numbering
    GPIO.setmode(GPIO.BCM)
    # Set LedPin's mode to output, 
    # and initial level to High(3.3v)
    GPIO.setup(BeepPin, GPIO.OUT, initial=GPIO.HIGH)

def main():
    print_message()
    while True:
        # Buzzer on (Beep)
        print ('Buzzer On')
        GPIO.output(BeepPin, GPIO.LOW)
        time.sleep(0.1)
        # Buzzer off
        print ('Buzzer Off')
        GPIO.output(BeepPin, GPIO.HIGH)
        time.sleep(0.1)

def destroy():
    # Turn off buzzer
    GPIO.output(BeepPin, GPIO.HIGH)
    # Release resource
    GPIO.cleanup()    

# If run this script directly, do:
if __name__ == '__main__':
    setup()
    try:
        main()
    # When 'Ctrl+C' is pressed, the child program 
    # destroy() will be  executed.
    except KeyboardInterrupt:
        destroy()