from machine import Pin, Timer
from time import sleep_us

# Definiši pinove
output_pin = Pin(18, Pin.OUT)
enable_pin = Pin(LED_ACT, Pin.OUT)  # Prilagodite pin prema vašem mikrokontroleru
input_pin = Pin(9, Pin.IN, Pin.PULL_UP)
led_display_pins = [Pin(i, Pin.OUT) for i in range(8)]

# Inicijalizacija
count_value = 0
T_us = 2000
debounce_counter = 0
last_state = False

def toggle_output(timer):
    """Funkcija koja se poziva da bi se promenio status output_pin"""
    global output_pin
    output_pin.value(not output_pin.value())

def increment_count(pin):
    """Funkcija koja se poziva na prekid za inkrementaciju broja"""
    global count_value, debounce_counter, last_state
    current_state = pin.value() == 0  # Aktivno nisko stanje
    if debounce_counter == 0 and last_state != current_state:
        debounce_counter = 1
        last_state = current_state
    elif debounce_counter > 0 and debounce_counter < 10:
        if last_state == current_state:
            debounce_counter += 1
        else:
            debounce_counter = 0
    elif debounce_counter == 10:
        if last_state == current_state:
            count_value += 1
            update_led_display(count_value)
        debounce_counter = 0

def update_led_display(value):
    """Ažurira LED prikaz na osnovu count_value"""
    j = value % 10
    x = ((value // 10) % 10) << 4
    display_value = x + j
    for i in range(8):
        led_display_pins[i].value((display_value >> i) & 1)

# Postavljanje prekida za inkrementaciju
input_pin.irq(trigger=Pin.IRQ_RISING, handler=increment_count)

# Postavljanje timera za toggle_output
timer = Timer()
timer.init(period=T_us // 2, mode=Timer.PERIODIC, callback=toggle_output)

# Glavna petlja
while True:
    sleep_us(T_us // 2)
    if count_value % 2 == 0:
        output_pin.value(1)
        sleep_us(T_us // 2)