from machine import ADC, Pin
from time import sleep

ldr = ADC(26)

led = Pin(5, Pin.OUT)

while True:
    value = ldr.read_u16()
    voltage = value * 3.3 / 65535

    print("LDR value:", value, "| voltage:", round(voltage, 2),"v")

    if value < 10000:
        print(" It's dark!")
        led.on()
    else:
        print(" It's bright!")
        led.off()

    sleep(1)