from utime import sleep
from machine import Pin, ADC

LED = Pin(15, Pin.OUT)
ADC_SLIDER = Pin(27)
SLIDER = ADC(ADC_SLIDER)

while True: 
    SLIDER_VALUE = SLIDER.read_u16()
    SLIDER_VALUE = round(SLIDER_VALUE / 655.35)
    print(SLIDER_VALUE)
    sleep(0.1)