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

# configurar pantalla OLED, primero la conexión
i2c=I2C(scl=Pin(22), sda=Pin(21))
oled=SSD1306_I2C(128,64,i2c)
lista=["Hola", "Mundo", "Desarrollo", "UTNG" ]


while True:
  oled.text(lista[i], 64,32,1)
  oled.show()
  oled.fill(0)
  sleep(1)
  if i<len(lista)-1:
    i+=1
  else:
    i=0