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

NUM_LEDS = 16
current_led = 0
direction = 1  

pixels = NeoPixel(Pin(15), NUM_LEDS)
gumb = Pin(4, Pin.IN, Pin.PULL_UP)
sense = dht.DHT22(Pin(5))
pot = ADC(Pin(13))

def convert(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_sensors():
    sense.measure()
    tempe = sense.temperature()
    color = convert(tempe, -40, 80, 50, 255)
    return (int(color), 0, 0)

def read_potentiometer():
    pot_value = pot.read()
    speed = convert(pot_value, 0, 4095, 0.05, 1)  #(0.05 do 1 sekunda) spremeni pot
    return speed

def main():
    global current_led, direction

    pixels[current_led] = read_sensors()
    pixels.write()

    while True:
        if gumb.value() == 1:

            pixels[current_led] = (0, 0, 0)  
            current_led += direction

            if current_led == NUM_LEDS:
                current_led = NUM_LEDS - 1
                direction = -1
            elif current_led == -1:
                current_led = 0
                direction = 1

            color = read_sensors()
            pixels[current_led] = color  
            pixels.write()
            debounce_time = read_potentiometer()  
            sleep(debounce_time)  
        sleep(0.01)

main()