import time
from machine import ADC, Pin, PWM

# Pin definitions
led_pin = 27  # Assuming LED is connected to ADC pin 0
pot_last_value = -1

# Create ADC object
adc = ADC(Pin(26))

def getBrightness():
    # Read potentiometer value (0-4095) and map it to 0-100
    pot_value = adc.read_u16()
    mapped_value = int((pot_value / 4095) * 100)  # Map potentiometer value to 0-100 range
    print("Mapped brightness:", mapped_value)
    return mapped_value

def setup():
    global pot_last_value
    
    pwm = PWM(Pin(led_pin))
    pwm.freq(1000)  # Set PWM frequency to 1000 Hz
    
    while True:
        pot_current_value = adc.read_u16()
        if pot_current_value != pot_last_value:
            brightness = getBrightness()
            duty_cycle = int((brightness / 100) * 65535)
            pwm.duty_u16(duty_cycle)  # Set duty cycle as a 16-bit value
            pot_last_value = pot_current_value
        time.sleep_ms(50)  # Adjust delay as needed


if __name__ == '__main__':
    setup()