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import wiringpi
PIN_TO_SENSE = 23
def gpio_callback():
print "GPIO_CALLBACK!"
wiringpi.wiringPiSetupGpio()
wiringpi.pinMode(PIN_TO_SENSE, wiringpi.GPIO.INPUT)
wiringpi.pullUpDnControl(PIN_TO_SENSE, wiringpi.GPIO.PUD_UP)
wiringpi.wiringPiISR(PIN_TO_SENSE, wiringpi.GPIO.INT_EDGE_BOTH, gpio_callback)
while True:
wiringpi.delay(2000)