P18 (BCM) as the input of PIR sensor
from PIR import PIR_t
import time
PIR_t(18)
while(True):
time.sleep(10)P16, P20, P21, P26 as the pin1, pin2, pin3 and pin4 of stepper motor
from stepperMotor import StepperMotor_t
import time
motor = StepperMotor_t()
while(True):
time.sleep(5)
motor.start()
time.sleep(5)
motor.stop()