#https://microcontrollerslab.com/pir-motion-sensor-raspberry-pi-pico/

from machine import Pin
import utime
from machine import PWM


buzzer = PWM(Pin(15))
# tone of buzzer
buzzer.freq(500)


#   Pin(Pin_number, 
#       pin_mode (IN, OUT, OPEN_DRAIN), 
#       Internal resistor pull value(PULL_UP OR PULL_DOWN),
#       value   (1 0r 0))
#
LED = Pin(14,Pin.OUT)
PIR = Pin(13,Pin.IN, Pin.PULL_UP)

LED.low()


utime.sleep(2)


while True:
    motion = PIR.value()

    print(motion)
    if motion == 1:
        print("motion detected")
        LED.high()
        utime.sleep(3)

        # volume of buzzer
        buzzer.duty_u16(1000)

    else:
        print("no motion detected")
        LED.low()
        buzzer.duty_u16(0)
        utime.sleep(3)