from machine import Pin, SoftI2C, ADC
from time import sleep 
import ssd1306
import dht

i2c = SoftI2C(sda=Pin(22), scl=Pin(23)) 

display_largura:int = 128
display_altura:int = 64
oled = ssd1306.SSD1306_I2C(display_largura, display_altura, i2c)

sensor = dht.DHT22(Pin(19))
ldr = ADC(Pin(33))
ldr.atten(ADC.ATTN_0DB)

def DESENHO(x_inicial, y_inicial, largura, altura, cor):
    for x in range(x_inicial, x_inicial + largura):
        oled.pixel(x, y_inicial, cor)
        oled.pixel(x, y_inicial + altura - 1, cor)
    for y in range(y_inicial, y_inicial + altura):
        oled.pixel(x_inicial, y, cor)
        oled.pixel(x_inicial + largura - 1, y, cor)

def atualiza_display():
    oled.fill(0)

    try:
        sensor.measure()
        temperatura = sensor.temperature() 
        umidade = sensor.humidity()
    except OSError as e:
        temperatura = umidade = None
        print('ERRO')

    luminosidade = ldr.read() * (3.3 / 4095) * 100 

    DESENHO(0, 0, 40, 20, 1)  # temp
    DESENHO(44, 0, 40, 20, 1)  # umid
    DESENHO(88, 0, 40, 20, 1)  # lumi

    if temperatura is not None and umidade is not None:
        oled.text("Temp.:", 2, 2)
        oled.text(f"{temperatura:.1f}C", 2, 10)
    
        oled.text("Umid.:", 46, 2)
        oled.text(f"{umidade:.1f}%", 46, 10)
    else:
        oled.text("Erro DHT", 2, 2)


    oled.text("Lumi.:", 90, 2)
    oled.text(f"{luminosidade:.1f}", 90, 10)
    oled.show()

while True:
    atualiza_display()
    sleep(2)