from machine import Pin
import dht
import time

DHT = dht.DHT22(Pin(0))
RELAY = Pin(28, Pin.OUT)

while True:
    DHT.measure()
    temperature, humidity = DHT.temperature(), DHT.humidity()
    if temperature >= 30.0 or humidity <= 30.0:
        RELAY.value(1)
    else:
        RELAY.value(0)
    print(f'temperature: {temperature} °c humidity: {humidity} %')
    time.sleep(0.1)