PIR Sensor

import RPi.GPIO as GPIO
import time
GPIO.setmode(GPIO.BCM)
GPIO.setup(24,GPIO.OUT)
GPIO.setup(18,GPIO.IN)

while(True):
    myin=GPIO.input(18)
    if myin==True:
        print("Motion Detectedc")
        GPIO.output(24,True)
        time.sleep(0.5)
        GPIO.output(24,False)
        time.sleep(0.5)
    else:
        print("Motion not detectedc")
        time.sleep(1)