import network
from machine import Pin, ADC
from time import sleep
import BlynkLib
SSID = 'Wokwi-GUEST'
PASSWORD = ''
BLYNK_AUTH = 'YdUCZuumhtQY60grWntlka3y3pqPQwgT' 
pir = Pin(27, Pin.IN)        
mq2 = ADC(Pin(34))            
mq2.atten(ADC.ATTN_11DB)
mq2.width(ADC.WIDTH_10BIT)
door = Pin(12, Pin.OUT)
light = Pin(14, Pin.OUT)
def connect_wifi():
    wlan = network.WLAN(network.STA_IF)
    wlan.active(True)
    wlan.connect(SSID, PASSWORD)
    while not wlan.isconnected():
        print("Connecting to WiFi...")
        sleep(1)
    print("Connected to WiFi:", wlan.ifconfig())
connect_wifi()
blynk = BlynkLib.Blynk(BLYNK_AUTH) 
while True:
    blynk.run()
    gas_value = mq2.read()
    motion = pir.value() == 1
    gas_alert = gas_value > 600

    blynk.virtual_write(1, gas_value)
    if motion and gas_alert:
        door.on()
        blynk.virtual_write(0, "Door Open - Gas Alert!")
        blynk.virtual_write(2, 1) 
        print("Door Open | Gas:", gas_value)
    else:
        door.off()
        blynk.virtual_write(0, "Door Closed - Safe")
        blynk.virtual_write(2, 0)  
        print("Door Closed | Gas:", gas_value)

    sleep(1)