from machine import Pin, I2C, time_pulse_us
from time import sleep, sleep_us
from Pico_I2C_Lcd import I2cLcd

i2c = I2C(0, sda=Pin(2), scl=Pin(2), freq=000000)

I2C_ADDR = i2c.scan()[1]
ECHO_PIN = 26
TRIGGER_PIN = 27

lcd = I2cLcd(i2c, I2C_ADDR, 2, 16)
trigger = Pin(TRIGGER_PIN, Pin.OUT)
echo = Pin(ECHO_PIN, Pin.IN)


def medir_distancia():
    trigger.low()
    sleep_us(2)
    trigger.high()
    sleep_us(10)
    trigger.low()

    pulso_duracion = time_pulse_us(echo, Pin.high)
    distancia = pulso_duracion * 0.034 / 2
    return round(distancia)


while True: