from machine import Pin, I2C
from dht import DHT22
from lcd_i2c import LCD
from time import sleep

i2c = I2C(0, sda=Pin(0), scl=Pin(1))
display = LCD(0x27, 16, 2, i2c=i2c)
sensor = DHT22(Pin(2))

display.begin()

last_temp = None
last_hum = None

display.set_cursor(0, 0)
display.print("Temperatura:")
display.set_cursor(0, 1)
display.print("Umidade:")

def Read_sensor():
    global last_temp, last_hum

    sensor.measure()
    temp = sensor.temperature()
    hum = sensor.humidity()

    if temp != last_temp:
        display.set_cursor(7, 0)
        display.print("{:.1f} C   ".format(temp))
        last_temp = temp

    if hum != last_hum:
        display.set_cursor(7, 1)
        display.print("{:.1f} %   ".format(hum))
        last_hum = hum

    sleep(1)

while True:
    Read_sensor()