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

i2c=I2C(0,sda=Pin(0),scl=Pin(1),freq=400000)

oled = SSD1306_I2C(128, 64, i2c)
lin_hight = 9
col_width = 8

conv_coef = 3.3 / 65535 # facteur de conversion

def text_write(text,lin, col):
  oled.text(text,col*col_width,lin*lin_hight)

oled.fill(0)
oled.invert(True)

while True:
    voltage = ADC(4).read_u16() * conv_coef # conversion
    T = 29 - (voltage - 0.706)/0.001721
    T = round (T,1)
    T = str(T)

    text_write("la temperature", 1, 1)
    text_write("est de :", 3, 4)
    text_write(T, 5, 3)
    text_write("degC", 5, 9)
    
    oled.rect(5, 5, 116, 52, 1)
    oled.show()

    utime.sleep(5) # pause 1 seconde
    oled.fill(0)
    oled.show()