import time
from machine import I2C, Pin
from pico_i2c_lcd import I2cLcd

i2c = I2C(0, sda=Pin(0), scl=Pin(1), freq=400000)
I2C_ADDR = i2c.scan()[0]
lcd = I2cLcd(i2c, I2C_ADDR, 4, 20)
LEDPin = Pin(21, Pin.OUT, value=0)

while True:
    LEDPin.on()
    time.sleep(1)
    LEDPin.off()
    time.sleep(1)

    lcd.blink_cursor_on()