from machine import Pin, PWM, ADC
import time

# Setup LED with PWM on GPIO15
led = PWM(Pin(15))
led.freq(1000)   # Set PWM frequency to 1kHz

# Setup Potentiometer on ADC0 (GPIO26)
pot = ADC(Pin(26))

while True:
    pot_value = pot.read_u16()   # Read ADC (0–65535)
    
    led.duty_u16(pot_value)      # Set LED brightness = pot value
    
    time.sleep(0.01)             # Small delay for stability