import time
import board
import digitalio
import pwmio

# Yellow LED
led_yellow = digitalio.DigitalInOut(board.GP2)
led_yellow.direction = digitalio.Direction.OUTPUT

# Relay (Motor)
relay = digitalio.DigitalInOut(board.GP3)
relay.direction = digitalio.Direction.OUTPUT

# Buzzer
buzzer = pwmio.PWMOut(board.GP15, frequency=3000, duty_cycle=0)

# Vibration sensor
vib_sensor = digitalio.DigitalInOut(board.GP16)
vib_sensor.direction = digitalio.Direction.INPUT



# Siren function
def sound_buzzer(freq=False):
    buzzer.freq(freq)
    buzzer.duty_cycle(32768)  # 50% volume
    


print("System monitoring vibration...")

while True:
    if vib_sensor.value:

        # Turn ON outputs
        relay.value = True
        led_yellow.value = True
        
        while True:
            sound_buzzer(3000)

    time.sleep(0.1)