from machine import Pin
import time

# PIR motion sensor
pir = Pin(16, Pin.IN)

# Alert devices
led = Pin(15, Pin.OUT)
buzzer = Pin(14, Pin.OUT)

print("Smart Exam Cheating Detector Started")

while True:
    motion = pir.value()

    if motion == 1:
        print("⚠️ Suspicious Movement Detected!")
        led.on()
        buzzer.on()
        time.sleep(1)
    else:
        print("Normal Behavior")
        led.off()
        buzzer.off()

    time.sleep(0.5)