from machine import Pin, ADC
from time import sleep

bar = [Pin(a, Pin.OUT) for a in range(9, -1, -1)]
maximum = 65535
pot = ADC(Pin(26))

while True:
    adc = pot.read_u16()
    for i in range(9, -1, -1):
        if ((i / 10) * 100) >= (adc / maximum) * 100:
            bar[i].on()
        else:
            bar[i].off()
    sleep(0.001)