from machine import *
from time import *


LED = PWM(Pin(5))                  # LED connected to GP5 (PWM capable pin)
LDR = ADC(Pin(26))                 # LDR A0 (Analog output) connected to ADC0 (GP26)
LED.freq(1000)                     # Set PWM frequency to 1 kHz

while True:
    Light_Value = LDR.read_u16()         # Read 16-bit ADC value (0–65535)
    Brightness = 65535 - Light_Value     # Invert value: darker -> brighter LED
    LED.duty_u16(Brightness)             # Adjust LED brightness
    print("LDR Value:", Light_Value, " | LED Brightness:", Brightness)
    
    sleep(0.2)