code for managing ssd1306 OLED on ESP32 with micropython on a TTGO OLED board

oled.py

from machine import Pin, I2C
import ssd1306
import time
import esp32

def farenheit_to_celcius(farenheit_value):
    return (farenheit_value - 32) * 5 / 9

class Oled:        
    def __init__(self, reset = 16, scl = 15, sda = 4):
        self.reset_pin = Pin(reset, Pin.OUT)
        self.scl_pin = Pin(scl)
        self.sda_pin = Pin(sda)
        
        self.reset()
        self.show_temperature()

    def reset(self):
        self.reset_pin.off()
        time.sleep_ms(50)
        self.reset_pin.on()
        
        self.i2c = I2C(-1, scl=self.scl_pin, sda=self.sda_pin)
        self.oled = ssd1306.SSD1306_I2C(128, 64, self.i2c)
        
    def display(self, messages):        
        y = 10
        self.oled.fill(0)
        for message in messages:
            self.oled.text(message, 0, y)
            y += 10
        self.oled.show()
        print(messages)
        
    def show_temperature(self):
        temperature_f = esp32.raw_temperature()
        temperature_c = farenheit_to_celcius(temperature_f)

        messages = []
        messages.append("Temperature:")
        messages.append("{0:.1f}C".format(temperature_c))
        
        self.display(messages)
        
screen = Oled()