#! /usr/bin/python3
import RPi.GPIO as GPIO
from pathlib import Path 
import time 

class Relay:
    def __init__(self, pin):
        self.pin = pin
        GPIO.setmode(GPIO.BOARD)
        GPIO.setup(self.pin, GPIO.OUT, initial=GPIO.HIGH)

    def turn_on(self):
        GPIO.output(self.pin, GPIO.LOW)

    def turn_off(self):
        GPIO.output(self.pin, GPIO.HIGH)

    def teardown(self):
        GPIO.cleanup(self.pin)

if __name__ == '__main__':
    relay = Relay(12)
    relay.turn_on()
    time.sleep(5)
    relay.turn_off()
    time.sleep(5)
    relay.teardown()