from machine import Pin, ADC, I2C 
from ssd1306 import SSD1306_I2C 
import utime 
import math

x = 128 
y = 64 
BETA = 3950


i2c = I2C(0, scl = Pin(1), sda = Pin(0), freq=200000)
adc = ADC(28)

oled = SSD1306_I2C(x, y, i2c)

oled.text(str(adc.read_u16()), 0, 0)    
oled.show()

def get_temperautre():
    celsius = 1 / (math.log(1 / (65535 / adc.read_u16() - 1 )) / BETA + 1.0 / 298.15) - 273.15
    print(celsius)
    return celsius
    


while True: 
    get_temperautre()
    utime.sleep(1)
    oled.text(str(get_temperautre()), 0, 0)    
    oled.show()
    oled.fill(0)
    
#const float BETA = 3950; // should match the Beta Coefficient of the thermistor
#int analogValue = analogRead(A0);
#float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;