import dht
from machine import Pin
from time import sleep

sensor = dht.DHT22(Pin(28))
red = Pin(1, Pin.OUT)
green = Pin(2, Pin.OUT)
blue = Pin(3, Pin.OUT)

while True:
    try:
        sensor.measure()
        temp = sensor.temperature()  # corrected here

        print("Temperature:", temp, "°C")

        # Turn off all LEDs first
        red.off()
        green.off()
        blue.off()

        # Decide LED based on temperature
        if temp < 25:
            red.on()
            print("Cool")
        elif temp >= 25 and temp < 50:
            green.on()
            print("Hot")
        else:  # temp >= 50
            blue.on()
            print("Very Hot")

    except OSError as e:
        print("Sensor read error:", e)

    sleep(2)