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

ancho = 128
alto = 64

i2c = I2C(0,scl=Pin(21), sda=Pin(22))
oled = SSD1306_I2C(ancho,alto,i2c)

print(i2c.scan())
print(i2c)

while True:

    oled.text("*****************",0,0)
    oled.text("Hola",45,10)
    oled.text("Bienvenidos",20,25)
    oled.text("****************",0,35)
    oled.text("al ISPC",40,50)
    oled.text("****************",0,60)
    oled.show()
    time.sleep(4)