from machine import ADC, Pin, I2C
from time import sleep
from ssd1306 import SSD1306_I2C

i2c=I2C(0,sda=Pin(8), scl=Pin(9), freq=400000)    #initializing the I2C method 
oled = SSD1306_I2C(128, 64, i2c)
lux = 26


def readLight(photoGP):
  photoRes = machine.ADC(Pin(photoGP))
  light = photoRes.read_u16()
  #light = round(light/65535*100,2)
  return light


while True:
  lum = str(readLight(lux))
  # Clear the oled display in case it has junk on it.
  oled.fill(0)
  oled.text("Lux",0,1)
  oled.text(lum + " %",0,20)
  oled.show()

  # Finally update the oled display so the image & text is displayed
  oled.show()
  sleep(0.5)