print("This is anti theft system")
print("created by : oyen")
print("date : 24/3/2025")

#Import libraries/modules 
from machine import Pin, PWM
from utime import sleep

#Pin Declaration
pir_pin = Pin(33, Pin.IN)
led_red = Pin(18, Pin.OUT)
led_green = Pin(21, Pin.OUT)
buzzer_pin =PWM(Pin(25, Pin.OUT))

#Parameter Declaration (optional)
count_intruder = 0

#Main program
while True:
    motion_status = pir_pin.value()   #.value -->digital .read --> analog

    if motion_status == 1:  #1 means object detected
        print("help! there is an intruder!")
        for blink in range(5):
            led_red.on()
            buzzer_pin.init(freq=5000, duty = 512)
            sleep(0.2)
            led_red.off()
            buzzer_pin.init(freq=5000 , duty=0)
            sleep(0.2)
        

        count_intruder = count_intruder + 1
        print("frequency of object detected -- >", count_intruder)
    else:
        print("alhadulillah, semua selamat")
        led_green.on()
        led_red.off()
        buzzer_pin.init(freq=5000, duty=0)

    sleep(2) #system delay