from machine import Pin, PWM
import dht
import time

DHT_PIN = 4      
LED_PIN = 5   


sensor = dht.DHT22(Pin(DHT_PIN))
led = PWM(Pin(LED_PIN), freq=1000)  


TEMP_MIN = 20    
TEMP_MAX = 30   

def map_value(x, in_min, in_max, out_min, out_max):
   
    return (x - in_min) * (out_max - out_min) // (in_max - in_min) + out_min

def read_sensor():
   
    try:
        sensor.measure()
        temp = sensor.temperature()
        hum = sensor.humidity()
        print("Temp: {:.1f}°C  Hum: {:.1f}%".format(temp, hum))
        return temp
    except OSError as e:
        print("Error al leer el sensor:", e)
        return None

while True:
    temp = read_sensor()
    if temp is not None:
        
        intensity = map_value(temp, TEMP_MIN, TEMP_MAX, 0, 1023)
        intensity = max(0, min(1023, intensity))  
        led.duty(int(intensity))
    
    time.sleep(0.5)