# Modules Imports
from machine import Pin, ADC, I2C
from time import sleep
import ssd1306 

# Crear objetos para los led, el sensor y la pantalla OLED
ledR = Pin(2, Pin.OUT)
ledV = Pin(4, Pin.OUT)
sensor = ADC(Pin(32))
i2c = I2C(scl=Pin(5), sda=Pin(4))
oled = ssd1306.SSD1306_I2C(128, 32, i2c)

# Resolucion y voltage necesarios para trabajar
sensor.width(ADC.WIDTH_10BIT)
sensor.atten(ADC.ATTN_11DB)

while True:
    sensorVal = int(sensor.read())
    if sensorVal > 200:
        ledR.value(1)
        ledV.value(0)
        oled.fill(0)
        oled.text("Alerta, Nivel alto", 0, 0)
        oled.text("de CO!", 0, 10)
        oled.show()
    else:
        ledV.value(1)
        ledR.value(0)
        oled.fill(0)
        oled.text("CO Normal!", 0, 0)
        oled.show()
    sleep(2)