screen.py

import machine, time
from ssd1306 import SSD1306_I2C

WIDTH = const(132)
HEIGHT = const (64)
sda_pin = 21
scl_pin = 22

i2c = machine.I2C(scl=scl_pin, sda=sda_pin, speed=400000)

ssd = SSD1306_I2C(WIDTH, HEIGHT, i2c)

import freesans20

from writer import Writer
wri2 = Writer(ssd, freesans20, verbose=True)

Writer.set_clip(True, True)

for y in range(0,HEIGHT-1):
    for x in range(0,WIDTH-1):
        Writer.set_textpos(x, 0)
        wri2.printstring('{} {} MicroPython\nby LoBo\n10/2017'.format(x,y))

        ssd.show()
        time.sleep(1)