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

w = 128
h = 64

i2c = I2C(0, scl=Pin(17), sda=Pin(16), freq=400000)
oled = SSD1306_I2C(w, h, i2c)

while True:
    oled.fill(0)
    oled.text("Hello World", 0, 0)
    oled.text("SUB", 0, 20)
    sleep(2)
    oled.show()