from machine import Pin, I2C
import time
import ssd1306

i2c = I2C(0, scl=Pin(4),sda=Pin(5))
display = ssd1306.SSD1306_I2C(128, 64, i2c)

def scroll(texto, repetir):
    while True:
        for y in range(64, -8, -1):     
            display.text(texto, display.width // 2 - len(texto)*4, y ,1)
            display.show()
            time.sleep(0.01)
            display.fill(0)
            display.show()
        if not repetir:
            break

scroll("Quiero dormir", False)
scroll("Ya", False)
scroll("Hola", False)