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#!/usr/bin/env python
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...'
raw_input ("Press Enter to begin\n")
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()
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