import dht
from machine import ADC, Pin
from time import sleep


led = Pin(4, Pin.OUT)
danger_led = Pin(0, Pin.OUT)
d = dht.DHT22(Pin(14))
ldr = ADC(Pin(27, Pin.IN))

l_thres = 2000
t_thres = 50

while True:
    d.measure()
    temp = d.temperature()
    hum = d.humidity()
    l = 4063 - ldr.read()

    if l < l_thres: # room too dark
        led.value(1)
    else:
        led.value(0)
    
    if temp > t_thres:
        danger_led.value(1)
        print("DANGER! Very high temperature")

    sleep(0.5)
    # turn danger led off if it was on, resulting in a blinking-effect
    danger_led.value(0)