from machine import Pin
import utime

# Pinbelegung Bewegungssensor und LED
motion_sensor_pin = Pin(0, Pin.IN)
led_pin = Pin(5, Pin.OUT)

# Einschalten der LED
def turn_on_led():
    led_pin.value(1)

# Ausschalten der LED
def turn_off_led():
    led_pin.value(0)

# "SOS" - Funktion
def sos_blink():
    for _ in range(3):
        led_pin.value(1)
        utime.sleep(0.5)
        led_pin.value(0)
        utime.sleep(0.5)
    utime.sleep(1)
    for _ in range(3):
        led_pin.value(1)
        utime.sleep(1)
        led_pin.value(0)
        utime.sleep(1)
    utime.sleep(1)
    for _ in range(3):
        led_pin.value(1)
        utime.sleep(0.5)
        led_pin.value(0)
        utime.sleep(0.5)

# Hauptfunktion

try:
    motion_detected = False
    while True:
        if motion_sensor_pin.value():  # Wenn Bewegung erkannt wird
            motion_detected = True
            turn_on_led()
            start_time = utime.time()
            while utime.time() - start_time < 30:  # 30 Sekunden Bewegung überprüfen
                if not motion_sensor_pin.value():
                    motion_detected = False
                    break
            if not motion_detected:
                turn_off_led()
        else:
            if motion_detected:
                start_time = utime.time()
                while utime.time() - start_time < 10:  # 10 Sekunden Bewegung überprüfen
                    if motion_sensor_pin.value():
                        motion_detected = True
                        break
                else:
                    motion_detected = False
                    turn_off_led()
            else:
                turn_off_led()

        if motion_detected:
            sos_blink()

except KeyboardInterrupt:
    pass