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import esp
from machine import Pin

class DHT11(object):
    def __init__(self, pin):
        self.pin = Pin(pin)
        self.buf = bytearray(5)
        
    def measure(self):
        buf = self.buf
        esp.dht_readinto(self.pin, buf)
        if (buf[0] + buf[1] + buf[2] + buf[3]) & 0xff != buf[4]:
            raise Exception("checksum error")
        return buf
        
    def humi(self):
        return self.measure()[0]

    def temp(self):
        return self.measure()[2]

    def get(self):
        return [self.measure()[0], self.measure()[2]]

from DHT11 import DHT11
dht = DHT11(5)
dht.get()
dht.temp()
dht.humi()