from machine import ADC, Pin, PWM
import time

pot = ADC(Pin(26)) #GP26=ADC0
led = PWM(Pin(15)) #LED+220옴 저항
led.freq(1000) #1kHz로 깜빡임 (눈에는 안보임)

while True:
    value = pot.read_u16() #0~65535
    led.duty_u16(value) #그대로 밝기로 전달
    time.sleep(0.02)