from machine import Pin,SoftI2C,Timer,ADC
import time
from math import log
from ssd1306 import SSD1306_I2C

i2c=SoftI2C(sda=Pin(13),scl=Pin(12))
oled=SSD1306_I2C(128,64,i2c,addr=0x3c)

NTC=ADC(Pin(2))
BETA = 3950

while 1:
    analogValue = NTC.read()
    celsius = 1 / (log(1 / (4095. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15
    print('%.2f'%(celsius))
    time.sleep(1)

    oled.fill(0)
    oled.text('&&*%',0,0)
    oled.text("ADC",0,15)
    oled.text(str('%.2f'%(celsius))+'  (4095)',0,35)
    oled.show()