import dht
from machine import Pin
from time import sleep

sensor=dht.DHT22(Pin(16))

led1=Pin(8,Pin.OUT)
led2=Pin(7,Pin.OUT)
led3=Pin(6,Pin.OUT)

while True:
    sensor.measure()
    temp=sensor.temperature()
    print("Temperature:",temp,"C")

    if temp<25:
     led3.on()
     led1.off()
     led2.off()
     print("the temperature is cool!")
    elif temp>25 and temp<=50:
        led2.on()
        led1.off()
        led3.off()
        print("the temperature is warm!")   
    else:
        led1.on()
        led2.off()