from machine import Pin, PWM, ADC
import utime

led_pwm = PWM(Pin(0))
led_pwm.freq(1000)

potentiometer = ADC(Pin(28))
minV = 10000
maxV = 10005

leds = [Pin(i, Pin.OUT) for i in range(1,11)]

while True:
    vlt = minV + int((potentiometer.read_u16() / 65535) * (maxV - minV))  
    num_leds = int(((vlt - minV) / (maxV - minV)) * 10) 

    for i in range(10):
        leds[i].value(1 if i < num_leds else 0)

    utime.sleep(1)