>>> from machine import Pin, ADC
>>> import ssd1306
>>> from time import sleep
>>> display = ssd1306.SSD1306_I2C(128, 64, i2c)
>>> pot = ADC(0)
>>>
>>> while True:
...   pot_value = pot.read()
...   display.fill(0)
...   display.text(str(pot_value), 0, 0)
...   display.show()
...   sleep(0.1)