from machine import Pin
from time import sleep

led = Pin(4, Pin.OUT)
ldr_pin = Pin(16, Pin.IN)


while True :
    ldr_valeur = ldr_pin.value()
    
    print(ldr_valeur)
    
    if ldr_valeur == 1:
        led.on()
    else:
        led.off()
    
    sleep(0.2)