from machine import Pin, I2C
from time import sleep
import utime
from lcd_api import LcdApi
from i2c_lcd import I2cLcd

# Configurar I2C para LCD
i2c = I2C(1, sda=Pin(6), scl=Pin(7), freq=400000)
lcd = I2cLcd(i2c, 0x27, 2, 16)  # dirección 0x27 usual para I2C LCD

# Pines de LEDs
led_rojo = Pin(2, Pin.OUT)
led_amarillo = Pin(3, Pin.OUT)
led_verde = Pin(4, Pin.OUT)

# Pines de botones
btn_rojo = Pin(10, Pin.IN, Pin.PULL_DOWN)
btn_amarillo = Pin(11, Pin.IN, Pin.PULL_DOWN)
btn_verde = Pin(12, Pin.IN, Pin.PULL_DOWN)

# Mostrar mensaje de bienvenida
lcd.putstr("BIENVENIDOS")

def apagar_leds():
    led_rojo.value(0)
    led_amarillo.value(0)
    led_verde.value(0)

while True:
    if btn_rojo.value():
        apagar_leds()
        led_rojo.value(1)
        lcd.clear()
        lcd.putstr("ALERTA: LED ROJO")
        utime.sleep(0.5)
        
    elif btn_amarillo.value():
        apagar_leds()
        led_amarillo.value(1)
        lcd.clear()
        lcd.putstr("PRECAUCION:\nLED AMARILLO")
        utime.sleep(0.5)
        
    elif btn_verde.value():
        apagar_leds()
        led_verde.value(1)
        lcd.clear()
        lcd.putstr("ESTABLE:\nLED VERDE")
        utime.sleep(0.5)

    sleep(0.1)