from machine import Pin, ADC
import time

LDR_PIN = 25
LED_PIN = 2

# LDR Characteristics
GAMMA = 0.7
RL10 = 50

# Configuração dos pinos
ldr = ADC(Pin(LDR_PIN))
led = Pin(LED_PIN, Pin.OUT)

while True:
    analog_value = ldr.read()
    voltage = analog_value / 4095 * 5
    resistance = 2000 * voltage / (1 - voltage / 5)
    lux = pow(RL10 * 1e3 * pow(10, GAMMA) / resistance, 1 / GAMMA)
    
    print(lux)

    if lux > 50:
        led.value(0)  # Liga o LED
    else:
        led.value(1)  # Desliga o LED

    time.sleep(0.1)  # Aguarda 100 ms