from machine import Pin, I2C
import dht
import time
import random  
sensor = dht.DHT22(Pin(14))


led = Pin(15, Pin.OUT)

while True:
   
    sensor.measure()
    temp = sensor.temperature()
    hum = sensor.humidity()
    
   
    co2 = random.randint(400, 1000) 
    pm25 = random.uniform(5.0, 50.0)  
    
    
    print('Temperature:', temp, 'C')
    print('Humidity:', hum, '%')
    print('CO2 Level:', co2, 'ppm')
    print('PM2.5 Level:', pm25, 'µg/m³')

  
    if co2 > 800 or pm25 > 35:
        print('Poor air quality! LED ON')
        led.on()  
    else:
        print('Air quality is good. LED OFF')
        led.off()  
    
    
    time.sleep(2)