def movement():
    t2.start()

    for pir in range(0, 100, 5):
        spotPwm.ChangeDutyCycle(pir)
        time.sleep(3)

    for pir in range(100, -1, 5):
        spotPwm.ChangeDutyCycle(pir)


# Thread for hearbeat (led-ring)
t1 = Thread(target=heartbeat)
t1.start()


# Thread for SPOTlights
t2 = Thread(target=movement)


# make BUTTON_PIN as interrupt input
# react to falling edge and call our interrupt "nappi_painettu"
GPIO.add_event_detect(BUTTON_PIN, GPIO.FALLING, callback = nappi_painettu, bouncetime = 200)


# Attach interrupt for PIR and call - movement
GPIO.add_event_detect(PIR_PIN, GPIO.RISING, callback = movement, bouncetime = 100)