from machine import Pin,ADC
from machine import Pin
from time import sleep, time  # Import the 'time' module for timestamps

LED = Pin(14, Pin.OUT)
PIR_sensor = Pin(13, Pin.IN, Pin.PULL_UP)
LED.low()
sleep(3)

# Function to log motion events to the "log.txt" file
def log_motion_event():
    timestamp = time()
    with open("log.txt", "a") as log_file:
        log_file.write("Motion Detected at: {}\n".format(timestamp))

while True:
    print(PIR_sensor.value())
    if PIR_sensor.value() == 0:
        print("Motion Detected! -> LED is now ON")
        log_motion_event()  # Log the motion event with timestamp
        LED.high()
        sleep(5)
    else:
        print("No motion detected -> LED is OFF")
        LED.low()
        sleep(1)