#!/usr/bin/python
import RPi.GPIO as GPIO
import sys
import time

# Init GPIOs
GPIO.setmode(GPIO.BCM)
GPIO.setup(25, GPIO.IN, pull_up_down=GPIO.PUD_UP)

# Interrupt routine, beeing called, when interrupt happens
def interrupt_routine(callback):
    print "Interrupt triggered!"
    #Add your own code here


# Init Interrupt-Callback-Function --> register the interrupt trigger
GPIO.add_event_detect(25, GPIO.FALLING, callback=interrupt_routine)

# Simple init to abort program later with Ctrl+C in an exception
runProgram = True

#Run usual script
while runProgram:
    try:
	print time.strftime("%d.%m.%Y %H:%M:%S"), "Just doing nothing, awaiting an interrupt..."

	#Put your main program's code in here

	# Sleeping 5 seconds top make it readable
	time.sleep(5)
    except:
	print "Exception thrown -> Abort"
	runProgram = False


# Final cleanup
GPIO.cleanup()