from machine import Pin, I2C, PWM
from ssd1306 import SSD1306_I2C
from time import sleep

# OLEd

i2c = I2C(0, scl=Pin(22), sda=Pin(21))

oled = SSD1306_I2C(128, 64, i2c)

# LED

led = Pin(2, Pin.OUT)

# BUZZER

buzzer = PWM(Pin(15))
buzzer.freq(1000)

# FUNCIONES

def alerta():

    led.on()

    buzzer.duty(512)

    oled.fill(0)

    oled.text("ALERTA", 40, 10)
    oled.text("Posible riesgo", 10, 30)
    oled.text("detectado", 25, 45)

    oled.show()

    print("ALERTA ACTIVADA")


def monitoreo():

    led.off()

    buzzer.duty(0)

    oled.fill(0)

    oled.text("Monitoreando", 10, 20)
    oled.text("audio...", 30, 40)

    oled.show()

    print("Modo monitoreo")

# LOOP 
while True:

    alerta()
    sleep(3)

    monitoreo()
    sleep(3)