#!/usr/bin/python
# encoding:utf-8
import RPi.GPIO as GPIO
import time
import jiqiren as jqr



def hy():
    pin_fire = 18
    GPIO.setmode(GPIO.BCM)
    GPIO.setup(pin_fire, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
    for i in range(5):
        status = GPIO.input(pin_fire)
        if status == True:
            # print('没有检测到火')
            continue
        else:
            print('检测到火灾')
            for i in range(3):
                jqr.Key('请注意！检测到火灾！')
                GPIO.cleanup(pin_fire)
            break
    GPIO.cleanup(pin_fire)