print("Hello, ESP32!")
from machine import Pin 
from time import sleep 

#Push buttons (Inputs)(using internal pull-up resistors)
entrance_button = Pin(34,Pin.IN,Pin.PULL_UP)
exit_button = Pin(35,Pin.IN,Pin.PULL_UP)

# Counting LEDs (Outputs)
led_pins = [2,4,5,13,14,16,17,18]
leds = [Pin (pin,Pin.OUT, value=0) for pin in led_pins]


# Counter 
count = 0

def update_leds():
    for i in range(8):
        leds[i].value(1 if i < count else 0)

while True :
    print("Entrance:",entrance_button.value(),"Exit:",exit_button.value())
    sleep(0.5)


    if entrance_button.value() == 0:
        if count < 8 : 
           count += 1
           update_leds()
        sleep(0.3)

    if exit_button.value () == 0:
        if count > 0:
            count -= 1
            update_leds()
        sleep(0.3)