import machine
import utime
import dht

sda = machine.Pin(3, machine.Pin.IN, machine.Pin.PULL_UP)
led_pin = machine.Pin(8, machine.Pin.OUT)

sensor = dht.DHT22(sda)
while True:
    sensor.measure()
    temp = sensor.temperature()
    humidity = sensor.humidity()
    print("Temperature: {:.2f}°C, Humidity: {:.2f}%".format(temp, humidity))
    if temp < 50:
        utime.sleep_ms(1)
        led_pin.value(1)
    else:
        led_pin.value(0)
        utime.sleep(1)